Lockwood Cortex Digital Lockset - CTX3772 with 3772 Mortice Lock, 60mm Backset, Satin Chrome, Fire Rated, Key Override
At A Glance
At A Glance
DISPATCHUsually 3 Business Days
PIN Code 
RFID Card 
Mechanical Key 
Bluetooth / AppNot Available
Wi-FiNot Available
FingerprintNot Available
The Lockwood Cortex CTX3772SC/3772 is a commercial grade standalone digital lockset combining a capacitive touchscreen keypad and integrated RFID card reader with the Lockwood 3772 mortice lock. It delivers PIN code and card-based electronic access control without requiring network infrastructure, wiring, or a power supply - operating entirely on four AA batteries.
The CTX3772 is the mid-range mortice variant in the Cortex range. It uses a 60mm backset 3772 mortice lock and includes a key override cylinder, providing mechanical backup access. It also enables two exclusive mortice-only features: Code Lockout (using the cylinder to electronically lock out all card and PIN users) and Latch Holdback (using the cylinder to hold the latch back for high-traffic periods). Both functions require the VCam accessory.
The Cortex is the first Australian digital lockset to be fire rated with Lockwood mortice variants. Free egress from the inside is always available regardless of access mode or programming state.
Estimated Warehouse Dispatch
Usually ships in 3 business days
Usually ships in 3 business days
Fire Rated - up to 2 Hours
Successfully tested on fire door assemblies in accordance with Australian Standard AS1905.1-2005 Part 1: Fire Resistant Doorsets. Fire performance is doorset-dependent and system-based - see our fire door buyers guide and the AS1905.1 test-report reference before specifying.
Successfully tested on fire door assemblies in accordance with Australian Standard AS1905.1-2005 Part 1: Fire Resistant Doorsets. Fire performance is doorset-dependent and system-based - see our fire door buyers guide and the AS1905.1 test-report reference before specifying.
Disability Discrimination Act (DDA) Compliance
Lever 77A is compliant with AS1428.1-2009. Lever compliance relates to handle design only and does not imply full building compliance. See our DDA and accessibility guide.
Lever 77A is compliant with AS1428.1-2009. Lever compliance relates to handle design only and does not imply full building compliance. See our DDA and accessibility guide.
Access Methods
New to these methods? Our access methods guide explains PIN / keypad entry and RFID card credentials - including how MIFARE cards are revoked individually.
Layout and Features
Exterior view - capacitive touchscreen keypad, integrated RFID card reader, key override cylinder, and Lever 77A.
Interior view - battery compartment (4 x AA) and free egress lever. No code required to exit from inside.
Key Features
- Standalone commercial grade digital lockset with 3772 mortice lock - no network, wiring, or power supply required.
- Key override cylinder included - provides mechanical backup access independent of battery or electronic state.
- Code Lockout function (mortice-only) - use the key cylinder to electronically lock out all card and PIN users. Requires VCam accessory.
- Latch Holdback function (mortice-only) - use the key cylinder to activate holdback for high-traffic periods. Requires VCam accessory. Not suitable for fire doors.
- Capacitive touchscreen keypad with no moving parts - buttons cannot wear to reveal a frequently used PIN.
- Ultra-bright LED backlighting beneath each button - suitable for high and low light conditions.
- Integrated RFID card reader compatible with iClass and Mifare card formats - covers approximately 90% of existing access control card systems worldwide.
- Up to 20 PIN code users and 40 RFID card users.
- 2 access cards included in the box. Up to 40 cards total can be enrolled - additional cards available separately in Satin Chrome or Red 5-packs.
- Dual Security Credential mode - requires both a card and a PIN from two separate users to unlock.
- Easy Mode and Advanced Mode programming - basic single-code setup can be completed in under 15 seconds.
- Visitor Code - a PIN programmed for a specific date period that expires automatically.
- One Time PIN - a single-use code that expires immediately after use.
- Passage Mode and Timed Passage Mode - toggle between locked and free passage, or schedule unlock/lock periods.
- Time and Date function with full calendar support including leap year.
- Cryptic Code function - enter random digits before or after the real PIN without affecting authentication.
- Delayed Unlock State - extra time to open the door after authentication. Suitable for elderly or disabled users.
- Smart Battery Check - accurately reports battery level and ignores false battery recovery readings.
- Battery Emergency PINS - allows entry when batteries are critically low.
- Powered by ARM Cortex-M3 processor - 20% lower standby power and 50% lower operational power than comparable digital locks.
- Up to 40,000 operations per battery set using card entry. Up to 18,000 using keypad entry.
- Free egress from inside at all times - no code or card required to exit.
- Severe vandal tested - SL8 (Security) and DL8 (Durability) rating per AS4145.2:1993.
- Lever 77A - DDA compliant per AS1428.1-2009.
- Fire rated up to 2 hours per AS1905.1-2005.
Heavy Duty - Built for Commercial Traffic
The CTX3772 is a commercial grade lockset for doors that work all day - commercial office entries, high-traffic doors and high-security rooms. The lockset is severe vandal tested and rated SL8 for security and DL8 for durability under AS4145.2:1993, and the capacitive touch keypad has no moving buttons to wear out. Underneath it sits the Lockwood Selector 3772 mortice lock, a heavy-duty commercial body with its own ratings (see About the Lockwood 3772 Mortice Lock below). On a busy door, Latch Holdback lets the door run free for set periods - never on a fire door. Our guide explains what actually makes a lock heavy duty.
The CTX3772 is a commercial grade lockset for doors that work all day - commercial office entries, high-traffic doors and high-security rooms. The lockset is severe vandal tested and rated SL8 for security and DL8 for durability under AS4145.2:1993, and the capacitive touch keypad has no moving buttons to wear out. Underneath it sits the Lockwood Selector 3772 mortice lock, a heavy-duty commercial body with its own ratings (see About the Lockwood 3772 Mortice Lock below). On a busy door, Latch Holdback lets the door run free for set periods - never on a fire door. Our guide explains what actually makes a lock heavy duty.
Lockwood Cortex - Model Range
All three models share the same electronic unit, access methods, programming features, lever (77A), finish (Satin Chrome), body material (Zinc Alloy), and door thickness range (35-48mm). Bold row indicates this product.
Accessories and Spares
Batteries (4 x AA alkaline) are not included. Browse our RFID cards, fobs and tags, scar and adaptor plates and mortice locks for smart locks.
Full Specifications
Dimensions - CTX3772 Lockset
Manufacturer dimensional drawing for the Lockwood Cortex CTX3772 showing overall lockset height (278mm), width (49mm), and depth (32mm exterior and interior panels).
What's in the Box
- Lockwood Cortex CTX3772 electronic lockset (exterior and interior panels)
- Lockwood 3772 mortice lock - 60mm backset
- Key override cylinder with keys
- 2 x Cortex access cards
- Spindle components (select to suit door thickness)
- Mounting hardware and fixings
- Installation instructions
Batteries not included - 4 x AA Alkaline batteries required. Additional cards available separately in packs of 5: Satin Chrome or Red. The VCam (Lockwood 3700 Series V Cylinder Cam) is required for Code Lockout and Latch Holdback functions and is sold separately.
About the Lockwood 3772 Mortice Lock
The Lockwood Selector 3772 is a heavy-duty commercial cylinder mortice lock used across industrial, commercial, institutional, and hospitality applications. It uses a universal primary lock body with red/green function setting and all lock settings configurable from under the faceplate. It includes anti-lockout and holdback capabilities as standard, and is compatible with Lockwood 1800 and 2800 Series door furniture.
The 3772 is available in three backset sizes. The CTX3772SC/3772 Cortex lockset is supplied with the 60mm backset variant. For aluminium doors, the 3772AFSS aluminium door fixing version is also available.
Lockwood rates the Selector 3770 MkII mortice series at S7/S8 physical security, D8 durability and C6 corrosion resistance under AS 4145.2-2008. The 3772 uses a 15mm stainless steel latch bolt that is reversible in the door, and the mortice body on its own suits doors 32-50mm thick - the Cortex lockset narrows that to 35-48mm. The full range is in the Selector 3700 Series catalogue, and spare and alternative bodies are in our mortice locks for smart locks range.
Lockwood Selector 3772 MkII Universal Primary Mortice Lock. The CTX3772 Cortex lockset is supplied with the 60mm backset version in Satin Stainless Steel.
Bold row indicates the variant supplied with the CTX3772SC/3772 Cortex lockset. Door furniture (Lockwood 1800 or 2800 Series) must be ordered separately and is not included.
3772 Mortice Lock - Dimensions
Manufacturer dimensional drawing for the Lockwood Selector 3772 Mortice Lock showing lock body dimensions, backset measurement, faceplate size, and fixing hole positions.
3772 Mortice Lock - Strike Plate Dimensions
Manufacturer dimensional drawing for the Lockwood 3772 strike plate showing overall plate dimensions, latch and bolt aperture positions, and fixing hole centres.
Suitable Uses
- Commercial office entry doors requiring standalone electronic access control with mechanical key backup
- Fire-rated door assemblies requiring a digital mortice lockset
- Doors where key override is required for building management, emergency services, or insurance compliance
- High-security applications requiring Dual Security Credential (card and PIN from two users)
- High-traffic doors where Latch Holdback is needed for set periods of the day
- Sites integrating with an existing iClass or Mifare card-based access system
- Applications requiring time-based access control without network infrastructure
- Doors requiring DDA-compliant lever hardware
Available Finish Options
Satin Chrome
(This Product)
STK CTX3772SC/3772
Finish selection does not affect functionality, compliance, or performance.
Installation Tips
- A 28mm hole saw is required for door preparation. Use the supplied CTX3772 door preparation template to mark drilling positions accurately before cutting.
- Select the correct spindle length to suit the door thickness. See the spindle selection diagram below.
- The 3772 mortice lock is supplied with this lockset and must be installed in the door edge before fitting the Cortex escutcheon panels.
- A 60mm latch is required. Confirm the door preparation and backset and door thickness before installation - our backset measurement guide shows how.
- For Code Lockout and Latch Holdback functions, the VCam must be fitted under the mortice faceplate. These functions are not available without the VCam.
- Latch Holdback must not be activated on fire-rated doors as it prevents the door from self-closing and latching - a requirement of fire door assemblies.
- For fire door installations, confirm that the complete doorset assembly is part of a compliant fire-rated system. On existing apartment fire doors, check for asbestos risk before drilling.
- Lockwood recommends a 3mm clearance between the door and the frame for the Selector 3772 - it will operate with up to 7mm, but more than 5mm is not recommended. A door that sits out of line is the most common cause of a lock that will not latch - see door misalignment.
Spindle selection diagram for the CTX3772 mortice variant. Three spindle lengths are available to suit door thicknesses across the 35-48mm range. Select the correct spindle before installation.
Frequently Asked Questions
What is the difference between the CTX3772 and the CTX530?
The CTX3772 uses a 3772 mortice lock and includes a key override cylinder, making it taller (278mm vs 215mm) and giving it two additional features: Code Lockout and Latch Holdback (both require the VCam accessory). The CTX3772 is fire rated like the CTX530, but provides more mechanical security and management capability through the mortice lock and cylinder. The CTX530 uses a simpler 530 tubular latch and has no key override.
The CTX3772 uses a 3772 mortice lock and includes a key override cylinder, making it taller (278mm vs 215mm) and giving it two additional features: Code Lockout and Latch Holdback (both require the VCam accessory). The CTX3772 is fire rated like the CTX530, but provides more mechanical security and management capability through the mortice lock and cylinder. The CTX530 uses a simpler 530 tubular latch and has no key override.
What is the Code Lockout function?
Code Lockout allows an authorised person to use the key cylinder to electronically disable all card and PIN user access - locking out all electronic credentials while the mechanical key still works. This is useful for after-hours security or when the site needs to be placed in a restricted state. The VCam accessory must be installed under the mortice faceplate for this function to operate.
Code Lockout allows an authorised person to use the key cylinder to electronically disable all card and PIN user access - locking out all electronic credentials while the mechanical key still works. This is useful for after-hours security or when the site needs to be placed in a restricted state. The VCam accessory must be installed under the mortice faceplate for this function to operate.
Can the Latch Holdback be used on a fire door?
No. Latch Holdback must not be activated on fire-rated doors. Fire doors are required to self-close and latch - holding the latch back prevents this and would compromise the fire rating of the doorset. The Cortex catalogue explicitly notes this restriction. See our fire door types and certification guide for context.
No. Latch Holdback must not be activated on fire-rated doors. Fire doors are required to self-close and latch - holding the latch back prevents this and would compromise the fire rating of the doorset. The Cortex catalogue explicitly notes this restriction. See our fire door types and certification guide for context.
What happens if the batteries run flat?
The Cortex includes a Battery Emergency PINS function that allows entry when batteries are critically low. The Smart Battery Check function provides accurate battery level reporting and ignores false battery recovery readings. If all else fails, the key override cylinder provides mechanical access independent of battery state.
The Cortex includes a Battery Emergency PINS function that allows entry when batteries are critically low. The Smart Battery Check function provides accurate battery level reporting and ignores false battery recovery readings. If all else fails, the key override cylinder provides mechanical access independent of battery state.
Can this lock work with our existing access cards?
The Cortex supports both iClass and Mifare card formats - covering approximately 90% of existing access control card systems used worldwide. If your site currently uses iClass or Mifare cards, those cards can be programmed into the Cortex with no effect on your existing system.
The Cortex supports both iClass and Mifare card formats - covering approximately 90% of existing access control card systems used worldwide. If your site currently uses iClass or Mifare cards, those cards can be programmed into the Cortex with no effect on your existing system.
Additional Information
Mortice Lock vs Tubular Latch:
The 3772 mortice lock provides a higher level of mechanical security than the 530 tubular latch. Mortice locks engage more deeply into the door frame and are more resistant to forced entry. The cylinder override and mortice body together make the CTX3772 better suited to external or higher-security door applications than the CTX530.
The 3772 mortice lock provides a higher level of mechanical security than the 530 tubular latch. Mortice locks engage more deeply into the door frame and are more resistant to forced entry. The cylinder override and mortice body together make the CTX3772 better suited to external or higher-security door applications than the CTX530.
VCam Accessory:
The VCam is a small accessory fitted under the mortice faceplate that enables the Code Lockout and Latch Holdback cylinder-operated functions. It is the Lockwood 3700 Series V Cylinder Cam, is not included in the box, and must be purchased and installed separately if these functions are required. Without the VCam, the CTX3772 operates as a standard electronic lockset with key override only.
The VCam is a small accessory fitted under the mortice faceplate that enables the Code Lockout and Latch Holdback cylinder-operated functions. It is the Lockwood 3700 Series V Cylinder Cam, is not included in the box, and must be purchased and installed separately if these functions are required. Without the VCam, the CTX3772 operates as a standard electronic lockset with key override only.
Capacitive Touchscreen Security:
The capacitive touch buttons have no moving parts and cannot wear to reveal a frequently entered PIN. The Cryptic Code function allows random digits to be entered before or after the real PIN without affecting authentication, preventing shoulder-surfing attacks.
The capacitive touch buttons have no moving parts and cannot wear to reveal a frequently entered PIN. The Cryptic Code function allows random digits to be entered before or after the real PIN without affecting authentication, preventing shoulder-surfing attacks.
Dual Security Credential Mode:
This mode requires two users to be simultaneously present - one presenting a card, the other entering a PIN. It is intended for high-security applications such as server rooms, pharmacies, or cash handling areas where a two-person rule is required.
This mode requires two users to be simultaneously present - one presenting a card, the other entering a PIN. It is intended for high-security applications such as server rooms, pharmacies, or cash handling areas where a two-person rule is required.
Upgrade / Alternative - DX Digital-Mechanical:
If electronic access control is not required, the 3772 lock can instead be paired with Lockwood's DX digital-mechanical keypad (battery-free, code-only). Lockwood supplies DX conversion kits for the Selector 3772 - the 3772 DX Digital Conversion Kit and the Key Override DX kit.
If electronic access control is not required, the 3772 lock can instead be paired with Lockwood's DX digital-mechanical keypad (battery-free, code-only). Lockwood supplies DX conversion kits for the Selector 3772 - the 3772 DX Digital Conversion Kit and the Key Override DX kit.
Australian Compliance:
The CTX3772 meets Australian Electrical Regulatory Compliance (RCM) and European Electric Compliance (CE). It is rated to Australian Lock Standard AS4145.2:1993 at Security Level SL8 and Durability Level DL8. For plain-English background on these standards, see our Australian standards guide and the Lockwood brand profile.
The CTX3772 meets Australian Electrical Regulatory Compliance (RCM) and European Electric Compliance (CE). It is rated to Australian Lock Standard AS4145.2:1993 at Security Level SL8 and Durability Level DL8. For plain-English background on these standards, see our Australian standards guide and the Lockwood brand profile.
DDA and Accessible Housing:
The DDA-compliant Lever 77A (AS1428.1-2009) makes the CTX3772 suitable for accessible entrances. For NDIS, SDA, and disability-housing context, see our DDA smart locks guide.
The DDA-compliant Lever 77A (AS1428.1-2009) makes the CTX3772 suitable for accessible entrances. For NDIS, SDA, and disability-housing context, see our DDA smart locks guide.
Warranty
Lockwood Warranty (Australia)
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
- Electrical and electronic components: 3 years (excluding batteries)
Batteries, normal wear and tear, misuse, unauthorised modification, corrosion and labour or freight costs are excluded.
This warranty operates in addition to rights available under the Australian Consumer Law.
Download PDF Resources
Lockwood Electronic Access Control Catalogue (PDF)
Lockwood's Cortex range catalogue - the CTX530, CTX3772 and CTX5782 side by side, features and electronic specifications, the CTX3772 dimensioned drawing on page 7, ordering codes and the spare card packs.
Lockwood's Cortex range catalogue - the CTX530, CTX3772 and CTX5782 side by side, features and electronic specifications, the CTX3772 dimensioned drawing on page 7, ordering codes and the spare card packs.
Lockwood Cortex Mortice Installation Instructions (PDF)
Illustrated A3 fitting sequence for the Cortex mortice locksets (CTX3772 and CTX5782) - the 28mm hole saw, fitting the external and internal spindles into the lever hubs, and choosing the spindle length to suit your door thickness.
Illustrated A3 fitting sequence for the Cortex mortice locksets (CTX3772 and CTX5782) - the 28mm hole saw, fitting the external and internal spindles into the lever hubs, and choosing the spindle length to suit your door thickness.
Lockwood Cortex CTX3772 Door Preparation Template (PDF)
Printable drilling and marking template for the CTX3772 with the 3772 mortice lock. It is a custom page size, so print it at 100% (actual size) for the hole positions to come out true.
Printable drilling and marking template for the CTX3772 with the 3772 mortice lock. It is a custom page size, so print it at 100% (actual size) for the hole positions to come out true.
Lockwood Selector 3700 Series Mortice Locks Catalogue (PDF)
Lockwood's catalogue for the Selector 3700 mortice platform - the 3772 MkII escape lock pages cover the mortice lock supplied with this lockset: backsets, functions, ratings and accessories.
Lockwood's catalogue for the Selector 3700 mortice platform - the 3772 MkII escape lock pages cover the mortice lock supplied with this lockset: backsets, functions, ratings and accessories.
Lockwood 3700 Series Mortice Locks Service Manual (PDF)
Service manual for the Selector 3700 platform - the 3772 function matrix, lock setting procedures (hub, cam and adaptor, anti-lockout and holdback), exploded parts diagrams and mounting templates. It is the 2016 edition, so take adaptor part numbers from the 2024 Selector catalogue.
Service manual for the Selector 3700 platform - the 3772 function matrix, lock setting procedures (hub, cam and adaptor, anti-lockout and holdback), exploded parts diagrams and mounting templates. It is the 2016 edition, so take adaptor part numbers from the 2024 Selector catalogue.
Lockwood Warranty - 25 Year Mechanical (PDF)
Lockwood's full warranty terms - 25 years mechanical, 3 years electrical and electronic (batteries excluded), 12 months on keys, finish cover by finish type, and the exclusions.
Lockwood's full warranty terms - 25 years mechanical, 3 years electrical and electronic (batteries excluded), 12 months on keys, finish cover by finish type, and the exclusions.
Lockwood Cortex CTX3772 - FAQ, Setup and Owner's Guide
Everything below is here to help you choose, fit, program and live with the Lockwood Cortex CTX3772 digital mortice lockset. For general smart lock questions see our Smart Lock FAQ (Chapter 13), and for measuring and door types start with the Smart Lock Buyer's Guide.
Access, Credentials and Programming
How many users can the Cortex CTX3772 hold?
Up to 20 PIN code users and 40 card users. Two access cards come in the box, and extra cards are sold in packs of five in Satin Chrome or Red. How PIN codes and RFID cards compare as credentials is covered in Chapter 03.
Up to 20 PIN code users and 40 card users. Two access cards come in the box, and extra cards are sold in packs of five in Satin Chrome or Red. How PIN codes and RFID cards compare as credentials is covered in Chapter 03.
Which access cards work with the Cortex?
The built-in reader takes iClass and Mifare cards - the two formats behind roughly 90% of the card-based access control systems in use - so cards from an existing iClass or Mifare site can usually be enrolled. Hold the card within 2cm of the reader, which sits above the keypad. Browse our card and fob smart locks and RFID cards, fobs and tags for the wider range.
The built-in reader takes iClass and Mifare cards - the two formats behind roughly 90% of the card-based access control systems in use - so cards from an existing iClass or Mifare site can usually be enrolled. Hold the card within 2cm of the reader, which sits above the keypad. Browse our card and fob smart locks and RFID cards, fobs and tags for the wider range.
How do I add or delete users - is there an app?
There is no app. Users are added and deleted at the lock itself using a Master Code, in either Easy Mode (a basic single-code setup takes under 15 seconds) or Advanced Mode for the full feature set. The Cortex has no Bluetooth or Wi-Fi, so there is nothing to pair and nothing that needs the internet. If you want to manage a door from your phone, look at our app-enabled smart locks and the access method comparison in Chapter 03.
There is no app. Users are added and deleted at the lock itself using a Master Code, in either Easy Mode (a basic single-code setup takes under 15 seconds) or Advanced Mode for the full feature set. The Cortex has no Bluetooth or Wi-Fi, so there is nothing to pair and nothing that needs the internet. If you want to manage a door from your phone, look at our app-enabled smart locks and the access method comparison in Chapter 03.
What is Dual Security Credential mode?
It is a two-person rule. With Dual Security Credential switched on, the door only opens when one user presents a card and a second user enters a PIN. It suits rooms where one person should never be alone with the contents - server rooms, pharmacies and cash handling areas.
It is a two-person rule. With Dual Security Credential switched on, the door only opens when one user presents a card and a second user enters a PIN. It suits rooms where one person should never be alone with the contents - server rooms, pharmacies and cash handling areas.
Can I give a tradesperson or visitor a temporary code?
Yes. A Visitor Code is a PIN programmed for a set date period that stops working on its own when the period ends, and a One Time PIN works once and then expires. The lock keeps its own time and date with a full calendar, leap years included. More on PIN code access.
Yes. A Visitor Code is a PIN programmed for a set date period that stops working on its own when the period ends, and a One Time PIN works once and then expires. The lock keeps its own time and date with a full calendar, leap years included. More on PIN code access.
Can someone work out my code from the keypad?
The capacitive touch keys have no moving parts, so they cannot wear down to show which numbers are used most. The Cryptic Code function lets you enter random digits before or after your real PIN, so a code watched over your shoulder is not the code. Each key is LED backlit and the lock gives an audible tone as you enter a code. For the bigger picture, see are digital door locks secure?
The capacitive touch keys have no moving parts, so they cannot wear down to show which numbers are used most. The Cryptic Code function lets you enter random digits before or after your real PIN, so a code watched over your shoulder is not the code. Each key is LED backlit and the lock gives an audible tone as you enter a code. For the bigger picture, see are digital door locks secure?
Key Override, Code Lockout and Latch Holdback
What is the key override for?
The key cylinder gives you mechanical access that does not depend on the batteries or the electronics - the fall-back for a flat battery, a fault or an emergency, and the reason building managers and emergency services often insist on one. Read what a mechanical key override is and browse other smart locks with a backup key.
The key cylinder gives you mechanical access that does not depend on the batteries or the electronics - the fall-back for a flat battery, a fault or an emergency, and the reason building managers and emergency services often insist on one. Read what a mechanical key override is and browse other smart locks with a backup key.
What does Code Lockout do?
Lockwood calls it the Code Lockout / Privacy function. An authorised key holder turns the key cylinder to electronically lock out every card and PIN user, while the mechanical key keeps working. It suits after-hours lock-up, or a room that needs to be put in a restricted state. It only works on the mortice models (the CTX3772 and CTX5782), and the VCam (Lockwood 3700 Series V Cylinder Cam) must be fitted under the mortice faceplate - it is not in the box.
Lockwood calls it the Code Lockout / Privacy function. An authorised key holder turns the key cylinder to electronically lock out every card and PIN user, while the mechanical key keeps working. It suits after-hours lock-up, or a room that needs to be put in a restricted state. It only works on the mortice models (the CTX3772 and CTX5782), and the VCam (Lockwood 3700 Series V Cylinder Cam) must be fitted under the mortice faceplate - it is not in the box.
What is Latch Holdback, and when should I use it?
Latch Holdback uses the key cylinder to hold the latch back so the door opens freely - handy for a busy entry during trading hours. Like Code Lockout it is mortice-only and needs the VCam fitted. It must never be used on a fire door: a fire door has to close and latch on its own, and holding the latch back defeats that. Our guides cover how holdback works and why it never belongs on a fire door.
Latch Holdback uses the key cylinder to hold the latch back so the door opens freely - handy for a busy entry during trading hours. Like Code Lockout it is mortice-only and needs the VCam fitted. It must never be used on a fire door: a fire door has to close and latch on its own, and holding the latch back defeats that. Our guides cover how holdback works and why it never belongs on a fire door.
What is the difference between Passage Mode and Latch Holdback?
Passage Mode is an electronic setting on the lockset - you switch the door between locked and free passage, or schedule the unlock and lock times with Timed Passage Mode. Latch Holdback is mechanical: the key cylinder and VCam physically hold the latch back. The key difference is explained in our passage mode vs holdback guide.
Passage Mode is an electronic setting on the lockset - you switch the door between locked and free passage, or schedule the unlock and lock times with Timed Passage Mode. Latch Holdback is mechanical: the key cylinder and VCam physically hold the latch back. The key difference is explained in our passage mode vs holdback guide.
Do I need the VCam if I only want PIN, card and key access?
No. Without the VCam the CTX3772 works as a standard electronic lockset with key override - PIN codes, cards and the key all work. The VCam is only needed for Code Lockout and Latch Holdback.
No. Without the VCam the CTX3772 works as a standard electronic lockset with key override - PIN codes, cards and the key all work. The VCam is only needed for Code Lockout and Latch Holdback.
Fire Doors, Accessibility and Standards
Can the CTX3772 be fitted to a fire door?
Yes. The Cortex is the first Australian digital lockset to be fire rated with Lockwood mortice variants, and it has been tested on fire door assemblies to AS1905.1-2005 for up to 2 hours. Fire performance belongs to the whole doorset, not the lock alone, so check the door, frame and hardware as a system before you specify it - how AS1905.1 certification works, the strata fire door checklist and the fire rating certificates by lock. Browse every fire door smart lock we stock.
Yes. The Cortex is the first Australian digital lockset to be fire rated with Lockwood mortice variants, and it has been tested on fire door assemblies to AS1905.1-2005 for up to 2 hours. Fire performance belongs to the whole doorset, not the lock alone, so check the door, frame and hardware as a system before you specify it - how AS1905.1 certification works, the strata fire door checklist and the fire rating certificates by lock. Browse every fire door smart lock we stock.
The Selector 3772 mortice is fire tested to 4 hours - does that make this lockset a 4-hour lock?
No. The figure for the Cortex CTX3772 lockset is up to 2 hours. Lockwood fire tests the Selector 3770 MkII mortice series up to 4 hours, doorset dependent, but that applies to the mortice body on its own - fitting the Cortex lockset to it does not lift the lockset's own figure, and the complete doorset still decides the result. See how smart locks are fire tested.
No. The figure for the Cortex CTX3772 lockset is up to 2 hours. Lockwood fire tests the Selector 3770 MkII mortice series up to 4 hours, doorset dependent, but that applies to the mortice body on its own - fitting the Cortex lockset to it does not lift the lockset's own figure, and the complete doorset still decides the result. See how smart locks are fire tested.
I am fitting this to an existing apartment fire door - anything to watch for?
Yes - check for asbestos before anyone drills. Some older apartment fire door cores contain it. Our guides explain the three risk windows, the Queensland rules and what to do before drilling.
Yes - check for asbestos before anyone drills. Some older apartment fire door cores contain it. Our guides explain the three risk windows, the Queensland rules and what to do before drilling.
Is the CTX3772 DDA compliant?
The Lever 77A is compliant with AS1428.1-2009. That compliance relates to the lever design - it does not make a whole building compliant on its own. The Delayed Unlock State setting adds extra time to open the door after a code or card is accepted, which helps elderly users and people with a disability. See the DDA and Premises Standards, AS1428.1 lever requirements and our NDIS and disability housing guide.
The Lever 77A is compliant with AS1428.1-2009. That compliance relates to the lever design - it does not make a whole building compliant on its own. The Delayed Unlock State setting adds extra time to open the door after a code or card is accepted, which helps elderly users and people with a disability. See the DDA and Premises Standards, AS1428.1 lever requirements and our NDIS and disability housing guide.
What do the SL8 and DL8 ratings mean?
They are the lockset's grades under Australian Standard AS4145.2:1993 - SL8 for security and DL8 for durability - and the lockset is severe vandal tested. Chapter 11 explains security (SL) grades and durability (D) grades. The lockset also carries RCM (Australian electrical compliance) and CE approval.
They are the lockset's grades under Australian Standard AS4145.2:1993 - SL8 for security and DL8 for durability - and the lockset is severe vandal tested. Chapter 11 explains security (SL) grades and durability (D) grades. The lockset also carries RCM (Australian electrical compliance) and CE approval.
Power and Batteries
What batteries does it take, and how long do they last?
Four AA alkaline batteries, which are not included. Lockwood rates a set at up to 40,000 operations using cards, or up to 18,000 using the keypad. The ARM Cortex-M3 processor is the reason: Lockwood quotes 20% lower standby power and 50% lower operating power than comparable digital locks. Real-world battery life depends on traffic - see battery life, the truth and our power and battery FAQs.
Four AA alkaline batteries, which are not included. Lockwood rates a set at up to 40,000 operations using cards, or up to 18,000 using the keypad. The ARM Cortex-M3 processor is the reason: Lockwood quotes 20% lower standby power and 50% lower operating power than comparable digital locks. Real-world battery life depends on traffic - see battery life, the truth and our power and battery FAQs.
What happens when the batteries run low or go flat?
Smart Battery Check reports the battery level accurately and ignores the false recovery a tired battery can show. When the batteries are critically low, Battery Emergency PINS still allow entry, and the key override opens the door regardless of battery state. Read what to do when the battery dies.
Smart Battery Check reports the battery level accurately and ignores the false recovery a tired battery can show. When the batteries are critically low, Battery Emergency PINS still allow entry, and the key override opens the door regardless of battery state. Read what to do when the battery dies.
Fit, Door Preparation and Installation
What door thickness does it suit?
35-48mm. The Selector 3772 mortice body on its own suits doors 32-50mm thick, but the Cortex lockset sets the limit at 35-48mm. The spindle is chosen to suit your door thickness - use the spindle selection diagram on this page and the Cortex Mortice Installation Instructions. How to measure door thickness is in Chapter 02.
35-48mm. The Selector 3772 mortice body on its own suits doors 32-50mm thick, but the Cortex lockset sets the limit at 35-48mm. The spindle is chosen to suit your door thickness - use the spindle selection diagram on this page and the Cortex Mortice Installation Instructions. How to measure door thickness is in Chapter 02.
What backset is it, and what if my door stile is narrow?
The CTX3772 uses the 60mm backset 3772 mortice lock. For narrow-stile aluminium doors, the Cortex CTX5782 uses a 30mm backset 5782 narrow mortice lock instead. See how to measure your backset and stile width.
The CTX3772 uses the 60mm backset 3772 mortice lock. For narrow-stile aluminium doors, the Cortex CTX5782 uses a 30mm backset 5782 narrow mortice lock instead. See how to measure your backset and stile width.
What do I need to prepare the door?
A 28mm hole saw, the CTX3772 door preparation template (a custom page size - print it at 100%, actual size) and a mortice pocket in the door edge for the 3772 lock, which is fitted before the Cortex escutcheons. The fitting sequence is in the Cortex Mortice Installation Instructions. Getting the spindle wrong is a common DIY mistake, and mortice door prep is explained in Chapter 02.
A 28mm hole saw, the CTX3772 door preparation template (a custom page size - print it at 100%, actual size) and a mortice pocket in the door edge for the 3772 lock, which is fitted before the Cortex escutcheons. The fitting sequence is in the Cortex Mortice Installation Instructions. Getting the spindle wrong is a common DIY mistake, and mortice door prep is explained in Chapter 02.
How much gap should there be between the door and the frame?
Lockwood recommends 3mm of clearance for the Selector 3772. It will operate with up to 7mm, but more than 5mm is not recommended. A door that has dropped or sits out of line is the usual reason a lock will not latch - see door misalignment and door alignment.
Lockwood recommends 3mm of clearance for the Selector 3772. It will operate with up to 7mm, but more than 5mm is not recommended. A door that has dropped or sits out of line is the usual reason a lock will not latch - see door misalignment and door alignment.
Is the lockset handed?
No - the CTX3772 is reversible, so it suits left or right hand doors. If you are unsure which you have, see how to work out door handing.
No - the CTX3772 is reversible, so it suits left or right hand doors. If you are unsure which you have, see how to work out door handing.
I am replacing an existing lock - how do I cover the old holes?
The Lockwood Cortex scar plate pair (CTX-SSPLT-3772) is made to suit the CTX3772 and covers marks left on the door face by the previous hardware. See what a scar plate is and our full range of scar and adaptor plates.
The Lockwood Cortex scar plate pair (CTX-SSPLT-3772) is made to suit the CTX3772 and covers marks left on the door face by the previous hardware. See what a scar plate is and our full range of scar and adaptor plates.
Does the CTX3772 suit an aluminium door?
The CTX3772 is supplied with the standard 3772 mortice body. The Selector 3772 also comes in an aluminium door fixing version (3772AFSS), sold separately - talk to us before ordering so we can confirm the right combination for your door. For narrow aluminium stiles, the CTX5782 is the Cortex built for them. Not sure? Ask for a recommendation from a qualified locksmith.
The CTX3772 is supplied with the standard 3772 mortice body. The Selector 3772 also comes in an aluminium door fixing version (3772AFSS), sold separately - talk to us before ordering so we can confirm the right combination for your door. For narrow aluminium stiles, the CTX5782 is the Cortex built for them. Not sure? Ask for a recommendation from a qualified locksmith.
Can I install it myself?
A mortice lockset needs an accurate pocket in the door edge and careful drilling, and on a fire door the finished doorset has to stay compliant. We recommend professional installation for most buyers - read when DIY is appropriate, see our advice and installation service or professional supply and installation on the Gold Coast.
A mortice lockset needs an accurate pocket in the door edge and careful drilling, and on a fire door the finished doorset has to stay compliant. We recommend professional installation for most buyers - read when DIY is appropriate, see our advice and installation service or professional supply and installation on the Gold Coast.
Can the Cortex be used outdoors or near the coast?
Lockwood gives an operating range of -20 to 60 degrees C, but doesn't quote an IP weather rating for the Cortex, and the Lockwood warranty excludes corrosion from coastal air and salt spray. On an exposed or coastal door, talk to us first. Background reading: coastal environments, Queensland conditions and how long digital locks last on the coast.
Lockwood gives an operating range of -20 to 60 degrees C, but doesn't quote an IP weather rating for the Cortex, and the Lockwood warranty excludes corrosion from coastal air and salt spray. On an exposed or coastal door, talk to us first. Background reading: coastal environments, Queensland conditions and how long digital locks last on the coast.
Choosing a Cortex Model or an Alternative
CTX3772, CTX530 or CTX5782 - which Cortex do I need?
All three share the same electronic unit, access methods, programming, Lever 77A, Satin Chrome finish and 35-48mm door thickness. The CTX530 uses a 530 tubular latch at 60mm backset with no key override - it is the most affordable and it is fire rated. The CTX3772 (this product) adds the 60mm 3772 mortice lock, a key override cylinder, Code Lockout and Latch Holdback, and is fire rated. The CTX5782 uses a 30mm backset 5782 narrow mortice lock for narrow stiles, with key override.
All three share the same electronic unit, access methods, programming, Lever 77A, Satin Chrome finish and 35-48mm door thickness. The CTX530 uses a 530 tubular latch at 60mm backset with no key override - it is the most affordable and it is fire rated. The CTX3772 (this product) adds the 60mm 3772 mortice lock, a key override cylinder, Code Lockout and Latch Holdback, and is fire rated. The CTX5782 uses a 30mm backset 5782 narrow mortice lock for narrow stiles, with key override.
Is there a battery-free option for the same mortice lock?
Yes, if you only need a code. Lockwood's DX digital-mechanical keypad fits the Selector 3772 with the 3772 DX Digital Conversion Kit or the Key Override DX kit. It needs no batteries, but it is code-only - no cards and no timed codes. Compare mechanical digital vs smart and browse the digital mechanical locks range.
Yes, if you only need a code. Lockwood's DX digital-mechanical keypad fits the Selector 3772 with the 3772 DX Digital Conversion Kit or the Key Override DX kit. It needs no batteries, but it is code-only - no cards and no timed codes. Compare mechanical digital vs smart and browse the digital mechanical locks range.
What if I need cards issued centrally across many doors?
The Cortex is programmed at each door with its Master Code. If you want one system issuing and cancelling cards across a building, the ASSA ABLOY Integral escutcheon with 3772 mortice lock is a data-on-card access control system built around the same Selector 3772 mortice footprint, and the escutcheon-only version suits a door that already has the mortice.
The Cortex is programmed at each door with its Master Code. If you want one system issuing and cancelling cards across a building, the ASSA ABLOY Integral escutcheon with 3772 mortice lock is a data-on-card access control system built around the same Selector 3772 mortice footprint, and the escutcheon-only version suits a door that already has the mortice.
Warranty
What warranty does the CTX3772 carry?
Lockwood's warranty: 25 years on mechanical components, 3 years on electrical and electronic parts (batteries excluded), 12 months on keys, and 10 years on the Satin Chrome plating. Corrosion from coastal or corrosive environments is excluded. Full terms are in the Lockwood warranty document, and our returns and warranty page explains how to make a claim.
Lockwood's warranty: 25 years on mechanical components, 3 years on electrical and electronic parts (batteries excluded), 12 months on keys, and 10 years on the Satin Chrome plating. Corrosion from coastal or corrosive environments is excluded. Full terms are in the Lockwood warranty document, and our returns and warranty page explains how to make a claim.
Related Products, Guides and Chapters
The Cortex range: Cortex CTX530 with 530 latch · Cortex CTX5782 with 5782 narrow mortice · all Lockwood products
Accessories and spares: Spare cards - Satin Chrome (5) · Spare cards - Red (5) · Cortex scar plate pair for CTX3772 · 3772SS mortice body · 3772AFSS aluminium door fixing body
Alternatives on the same mortice: 3772 DX Digital Conversion Kit · 3772 Key Override DX kit · ASSA ABLOY Integral escutcheon with 3772 mortice · Integral escutcheon only
Shop by category: PIN code smart locks · Fob, card and RFID · Has backup key · Fire door · Mortice locks for smart locks · Scar and adaptor plates · Digital mechanical locks · All smart locks
Buyer's Guide chapters: All chapters · Ch 02 Measuring Your Door · Ch 03 Access Methods · Ch 05 Fire Door Smart Locks · Ch 09 DDA and Accessibility · Ch 10 Lockwood brand profile · Ch 11 Standards · Ch 12 Installation · Ch 13 Smart Lock FAQ · Ch 16 Mechanical Digital Locks
Helpful blog reading: Mechanical Key Override on Smart Locks · Passage Mode vs Holdback Mode · Fire Door Types and Certification · Fire Rating Certificates · Asbestos in Apartment Fire Doors · Smart Locks for NDIS and Disability Housing · Measuring Your Lock Backset · The Realities of Electronic Door Locks · What Heavy Duty Actually Means · Scar Plates for Smart Locks · Site Survey and Installation
What's in the Box - Lockwood Cortex CTX3772
- Lockwood Cortex CTX3772 electronic lockset (exterior and interior panels)
- Lockwood 3772 mortice lock - 60mm backset
- Key override cylinder with keys
- 2 x Cortex access cards
- Spindle components (select to suit door thickness)
- Mounting hardware and fixings
- Installation instructions
Batteries are not included - 4 x AA Alkaline required. The VCam (Lockwood 3700 Series V Cylinder Cam) is required for Code Lockout and Latch Holdback and is sold separately. Additional access cards are available in packs of 5 (Satin Chrome or Red).
Lockwood Cortex CTX3772 - Dimensions
CTX3772 lockset - overall height 278mm, width 49mm, depth 32mm (exterior and interior panels).
Lockwood 3772 Mortice Lock - Dimensions
3772 mortice lock body - lock body dimensions, 60mm backset, faceplate size, and fixing hole positions.
Lockwood 3772 Strike Plate - Dimensions
3772 strike plate - overall plate dimensions, latch and bolt aperture positions, and fixing hole centres.
Lockwood Cortex - Electronic Access Control Catalogue
Page 1 - Lockwood Electronic Access Control Catalogue
Page 2 - Lockwood Electronic Access Control Catalogue
Page 3 - Cortex Digital Door Lock overview and product details
Page 4 - Features, specifications and electronic technical information
Page 5 - Cortex technology and functions
Page 6 - CTX530 exterior, interior and dimensional drawings
Page 7 - CTX3772 exterior, interior and dimensional drawings
Page 8 - CTX5782 drawings, accessories and ordering information
PDF Files - Lockwood Cortex CTX3772
Lockwood Electronic Access Control Catalogue (PDF)
Lockwood's Cortex range catalogue - the CTX530, CTX3772 and CTX5782 side by side, features and electronic specifications, the CTX3772 dimensioned drawing on page 7, ordering codes and the spare card packs.
Lockwood's Cortex range catalogue - the CTX530, CTX3772 and CTX5782 side by side, features and electronic specifications, the CTX3772 dimensioned drawing on page 7, ordering codes and the spare card packs.
Lockwood Cortex Mortice Installation Instructions (PDF)
Illustrated A3 fitting sequence for the Cortex mortice locksets (CTX3772 and CTX5782) - the 28mm hole saw, fitting the external and internal spindles into the lever hubs, and choosing the spindle length to suit your door thickness.
Illustrated A3 fitting sequence for the Cortex mortice locksets (CTX3772 and CTX5782) - the 28mm hole saw, fitting the external and internal spindles into the lever hubs, and choosing the spindle length to suit your door thickness.
Lockwood Cortex CTX3772 Door Preparation Template (PDF)
Printable drilling and marking template for the CTX3772 with the 3772 mortice lock. It is a custom page size, so print it at 100% (actual size) for the hole positions to come out true.
Printable drilling and marking template for the CTX3772 with the 3772 mortice lock. It is a custom page size, so print it at 100% (actual size) for the hole positions to come out true.
Lockwood Selector 3700 Series Mortice Locks Catalogue (PDF)
Lockwood's catalogue for the Selector 3700 mortice platform - the 3772 MkII escape lock pages cover the mortice lock supplied with this lockset: backsets, functions, ratings and accessories.
Lockwood's catalogue for the Selector 3700 mortice platform - the 3772 MkII escape lock pages cover the mortice lock supplied with this lockset: backsets, functions, ratings and accessories.
Lockwood 3700 Series Mortice Locks Service Manual (PDF)
Service manual for the Selector 3700 platform - the 3772 function matrix, lock setting procedures (hub, cam and adaptor, anti-lockout and holdback), exploded parts diagrams and mounting templates. It is the 2016 edition, so take adaptor part numbers from the 2024 Selector catalogue.
Service manual for the Selector 3700 platform - the 3772 function matrix, lock setting procedures (hub, cam and adaptor, anti-lockout and holdback), exploded parts diagrams and mounting templates. It is the 2016 edition, so take adaptor part numbers from the 2024 Selector catalogue.
Lockwood Warranty - 25 Year Mechanical (PDF)
Lockwood's full warranty terms - 25 years mechanical, 3 years electrical and electronic (batteries excluded), 12 months on keys, finish cover by finish type, and the exclusions.
Lockwood's full warranty terms - 25 years mechanical, 3 years electrical and electronic (batteries excluded), 12 months on keys, finish cover by finish type, and the exclusions.
Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants): typically up to 2 years against corrosion.
- Unlacquered brass finishes naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
Australian Consumer Law
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
Confused? Overwhelmed? We get it.
Choosing the right smart lock can be genuinely tricky - door types, backsets, app platforms, compatibility with your existing hardware... there is a lot to consider. We have decades of experience fitting locks of all types, including smart locks, and we are happy to help.
Our expert recommendation service is free. Upload a few photos of your door and describe what you need, and one of our qualified locksmiths will give you a personalised recommendation.
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A personalised recommendation tailored to your door, budget and needs. No pressure, no upsell.
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