Vault Alpha Slimline Smart Lock for Hinged and Sliding Doors with 3D Face Recognition
At A Glance
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The Vault Alpha (Vault_Alpha) is a slimline push-pull smart lock built for modern residential and light commercial doors that need keyless entry across several credential types, including 3D face recognition. Its narrow, long-form body integrates the handle and the access control into one unit, and it is one of the few Vault models rated for hinged or sliding doors.
Access is managed through the Vault Smart Locks app over Bluetooth, with remote unlocking, remote passcodes and access logs available when the lock is paired with the optional Vault G5 Gateway. Face, fingerprint, PIN, RFID card and the mechanical key all work at the door with no internet connection at all.
The mortice or latch is a checkout selection, so confirm your door type and stile width before ordering: the slim body is designed for narrower aluminium and timber profiles, and hinged and sliding doors take different mortice bodies. For where the Alpha sits in the wider line-up, see the Vault smart lock range guide.
Usually ships in 3 business days from our warehouse (excludes weekends and Queensland public holidays).
Key Features
- Slimline push-pull smart lock with an integrated handle - suits aluminium door bar-handle applications and other vertical push-pull doors.
- Six credentials at the door: 3D face recognition, fingerprint, PIN code, RFID card, Bluetooth app and a mechanical key override.
- Rated for hinged and sliding doors - the mortice or latch is chosen at checkout to match the door.
- User management, timed and one-time passcodes, app eKeys and the unlock log from the Vault Smart Locks app.
- Optional remote access through the dual-band Vault G5 Gateway, which avoids the band-steering problem common on single-band gateways.
- Rechargeable lithium battery with a 5V Micro USB emergency power input, so a flat battery does not mean a locked-out household.
- IP66-rated external module for everyday outdoor exposure on a regular front door.
Facial Recognition Access
The Alpha reads facial geometry with a 3D face recognition module for touch-free entry - useful when your hands are full. 3D structured-light sensing is a materially different technology to a 2D camera; our buyer's guide explains what that means for spoofing resistance and liveness detection.
Face recognition works alongside fingerprint, PIN, RFID card, Bluetooth app control and the mechanical key. The Alpha manual lists a capacity of 100 face profiles, and face registration is not possible beyond about 1.2 metres - follow the on-screen prompts during enrolment.
If the lock is going on a commercial, strata or managed-rental door, review the Australian Privacy Act obligations that apply to collecting facial recognition data before you proceed.
The external (outside) module is IP66 weather rated for everyday outdoor exposure - full dust protection and resistance to powerful water jets from any direction. The internal module, which houses the battery compartment and the rest of the electronics, is for interior use only and is not weather rated.
Access Methods
The Alpha carries six electronic credentials plus a mechanical key. Our side-by-side access method comparison explains how each one behaves in practice.
What's in the Box
- Front panel x1
- Back panel x1
- Lithium battery x1
- Lock cylinder x1
- Square bar (spindle) x1
- M5x30 screw tube x2
- Internal hexagonal wrench x1
- M5x90 cross countersunk head screw x2
- ID cards x2
- Charging cable x1
- Hole-opening (drilling) template x1
The lock body is not fixed in the carton. The Alpha ships with a 6085 mortice (60mm backset) for hinged and swinging doors as standard, and a sliding hook mortice, a 6068 mortice or a tubular latch can be chosen instead through the checkout process. See Mortice and Latch Selection below.
Lock Layout
The front (outside) panel carries the face recognition module, the display screen, the keypad and swipe-card area, a doorbell button, the fingerprint reader and the emergency power interface. The rear (inside) panel carries the battery cover, the lock and unlock buttons, the door-opening knob and the lock cylinder.

Mortice and Latch Selection
Selecting the correct lock body is the single most consequential decision on this page, and it is the most common cause of a smart lock that will not lock properly. Hinged and sliding doors take different mortice types. If you are unsure, see our guide to backset and smart lock mortice selection, or the full range of mortice locks for smart locks.



A Vault 6068 Mortice (60mm backset, 68mm lock centres) is also available, and the Vault Rebate Kit converts a mortice or tubular latch for rebated double door pairs. The 6068 and the 85mm Euro bodies are not interchangeable - the pitch differs.
Installation and Assembly
The front and rear panels fix through the door with the supplied screw tubes and countersunk screws, the square bar (spindle) is cut to suit the door thickness, and the wiring loom connects the two panels. The manual gives the spindle length as door thickness divided by two, plus 20mm. Press down on the sliding cover to expose the lock cylinder hole.
Correct mortice selection and door preparation are the two things that decide whether the install goes well - see our guide to the most common hardware and backset mistakes and when DIY is appropriate and when it is not. On the Gold Coast we also offer a measure and install service.
Battery, Power and Backup Access
- Powered by a rechargeable lithium battery - no disposable cells to buy. The manual states 3200 mAh at DC 8.4V.
- Undervoltage indication activates below 7V, which is the cue to charge rather than the moment access is lost.
- A 5V Micro USB emergency power input on the outside panel allows temporary operation if the internal battery is fully discharged - a power bank and a cable will open the door.
- The mechanical key override works in every power condition. See where the keyhole is and what to do when the battery dies.
- A charging cable is supplied in the box.
- Like any electronic lock, the Alpha is not set-and-forget - keep it charged and confirm the key opens the door on the day it is installed.
Suitable Uses
- Residential front entry doors - the regular front door case the IP66 external module is rated for.
- Narrow-frame aluminium and timber doors where a full-width escutcheon will not fit or would look out of proportion.
- Sliding doors fitted with a compatible hook bolt mortice, selected at checkout.
- Apartment doors - confirm body corporate and strata requirements before ordering.
- Office and light commercial entries where face recognition speeds up everyday access.
- Short-term rental and managed-access properties - see our guide to smart locks for Airbnb and short-stay rentals.
Vault smart locks are not certified to AS 1905.1 and must not be fitted to a fire door such as an apartment entry door or a garage-to-house door. See Chapter 05 for where fire doors are required in Queensland and which locks are compliant.
Available Finish Options
Matt Black
(This Product)
STK Vault_Alpha
Finish selection does not affect functionality, compliance, or performance.
Vault Slimline Smart Lock Range
The Alpha sits in the slimline family - narrow-bodied locks for doors that cannot take a full-width escutcheon. The whole line-up is on the Vault range overview.
Dimensions
Full Specifications
Figures are taken from the Vault Alpha user manual and the product listing. Note one internal inconsistency in the manual: the introduction badge states IP66 while the specification table states IP67. We quote the lower of the two, scoped to the external module, until Vault confirms which figure governs.


Vault Smart Locks App
The Alpha is set up and managed from the Vault Smart Locks app, available for iOS ![]()
and Android. Vault runs its own app platform - it is not a TTLock product.
Over Bluetooth you can add and revoke credentials, issue timed and one-time passcodes, send app eKeys, and read the unlock log. Managing the lock from outside Bluetooth range - remote unlocking, remote passcode changes, clock calibration and compatible Alexa or Google Home integration - requires the Vault G5 Gateway.
Wi-Fi Remote Access (Optional)
The Alpha is a Bluetooth-native lock. Everything at the door - face, fingerprint, PIN, card and key - works with no internet connection at all, which is the smart versus connected distinction worth understanding before you buy a gateway you may not need.
Adding the Vault G5 Gateway bridges the lock to your home Wi-Fi for remote lock and unlock, remote passcode issue and revocation, access-log review from anywhere, clock calibration, and compatible Alexa or Google Home control. The G5 is dual-band, which sidesteps the band-steering problem that trips single-band gateways up on modern routers. For the generation-by-generation picture see our G2 vs G3 vs G4 vs G5 comparison, and for whether you need one at all, what a gateway does. The wider range sits in modules and Wi-Fi gateways.
The Alpha includes a key cylinder override, so the door still opens if the battery is flat or an electronic method cannot be used. Keep the override key somewhere other than inside the door it opens, and confirm it turns during initial setup.
Frequently Asked Questions
Yes, with the correct lock body. The standard 6085 mortice is for hinged and swinging doors only; sliding doors need a hook bolt mortice, selected at checkout in a 2085 or 2885 narrow backset. Fitting the hinged body to a slider is one of the most common ordering mistakes we see.
No. The lock runs locally over Bluetooth, and face, fingerprint, PIN, RFID and the mechanical key all work at the door with no internet. Wi-Fi is only needed for remote functions, and it comes from the optional Vault G5 Gateway rather than being built into the lock.
Two fallbacks. A 5V Micro USB emergency power input on the outside panel lets you power the lock from a phone power bank and open it electronically while it charges, and the mechanical key cylinder works regardless of battery state. See what to do when the battery dies.
Up to 100 face profiles, 100 fingerprints, 200 PIN codes and 200 RFID cards, all managed from the Vault app. Face enrolment has to be done within about 1.2 metres of the lock.
The external module carries an IP66 rating against dust and powerful water jets, which covers most Australian residential entry doors. The internal module houses the battery and electronics and is interior-use only. It is not a submersion rating, and it is not a substitute for a covered entry in a beachfront position.
Additional Information
The Alpha manual prints IP66 on its introduction badge and IP67 in its specification table. We quote IP66, scoped to the external module, because it is the lower and therefore the safer of the two and it matches the figure the listing has carried since the page was first built. We have asked Vault which figure governs; nothing about how you would install or use the lock changes either way.
The slim body suits narrow aluminium and timber stiles, but it still needs a real 35mm of width and a 50mm clearance around the body. Check your stile width and door thickness, and confirm the backset before choosing the mortice.
Running face recognition on a commercial, strata or short-stay door can trigger obligations under the Australian Privacy Act. The obligation sits with whoever operates the lock, not with us, so it is worth reading before the lock goes on the door rather than after.
The fingerprint sensor and the face module both read better when they are clean. A wipe with a dry cloth every few weeks is the whole maintenance routine, and it is the cheapest way to avoid the "it stopped recognising me" call. For the longer view see how long digital door locks actually last.
Vault charges a refundable assessment holding fee on warranty returns - $200 in metropolitan areas and $250 elsewhere. It is refunded when the claim is assessed as a genuine warranty fault. We manage the claim with Vault on your behalf either way.
Warranty
Vault Smart Locks products purchased in Australia are covered against defects in materials and workmanship under normal residential or commercial use for:
- Standard range: 12 months from the date of purchase
- Select Signature Range models: 24 months (as stated on the product listing or packaging)
Returns & Warranty|View Vault Warranty Policy
This warranty operates in addition to your rights under the Australian Consumer Law.
Download PDF Resources
Fourteen-page manual: lock structure and specifications, inclusions list, dimensions, the seven-step installation sequence, factory reset, and app registration through to face and fingerprint enrolment.
Setup guide for the optional Vault G5 Wi-Fi gateway that adds remote unlocking, remote passcodes and clock calibration to this lock.
Vault Alpha - FAQ, Setup and Owner's Guide
The questions below go further than the summary on the main page. For general smart lock questions see the Smart Lock FAQ, and for the wider decision the Ultimate Smart Lock Buyer's Guide.
Door Fit and Mortice Choice
A 6085 body as standard - a 60mm backset at 85mm lock centres, for hinged and swinging doors. The Vault Hinged/Swinging Mortice range runs from a 25mm to a 70mm backset at the same 85mm pitch, so if your existing prep is not 60mm there is almost certainly a body that matches it. Measuring the backset takes about a minute.
The lock body does. A sliding door needs a hook bolt that swings out and grabs the jamb rather than a bolt that throws straight - a straight bolt cannot hold a slider closed. The Vault Sliding Hook Mortice comes in 2085 (20mm backset) and 2885 (28mm backset), both at 85mm centres. Everything else about the lock is identical.
The manual gives the formula as door thickness divided by two, plus 20mm. The square bar is cut to that length during installation, so a 40mm door takes a 40mm bar. Getting this wrong is the second most common cause of a lock that feels stiff or will not retract cleanly - see spindle mistakes.
Yes, with the Vault Rebate Kit, which converts a standard mortice or tubular latch for an overlapping door pair. Flush pairs and single doors do not need it. The wider range is in rebate kits and strikes.
The pitch - the distance between the spindle hole and the cylinder hole. A 6085 is a 60mm backset at 85mm centres; the Vault 6068 is a 60mm backset at 68mm centres. They are not interchangeable, and a 6068 will not drop into a door prepped for an 85mm body.
The body is 35mm wide and needs a 50mm recommended clearance around it. That puts it in narrow-frame territory but not in the very narrowest gate-stile category. Measure the stile width first; if it is under 50mm, talk to us before ordering.
Face Recognition
A 2D system compares a flat image; a 3D structured-light system projects a pattern and measures the depth of what it lands on, so it reads the shape of a face rather than a picture of one. That is what makes it much harder to defeat with a photograph. Our 2D versus 3D explainer sets out the technical distinction and what liveness detection adds on top.
Within about 1.2 metres. Enrolment will not complete beyond that distance, so stand close and follow the on-screen prompts. Day-to-day unlocking is more forgiving than enrolment.
Structured-light sensing projects its own pattern rather than relying on ambient light, so darkness is not the obstacle it is for a plain camera. Direct low-angle sun into the module is more likely to cause a miss than night-time is.
Enrol them on a second credential as well. That is good practice on any biometric lock: fingerprints struggle with wet or worn fingers, and faces can be awkward if someone is much shorter or taller than the enrolment position. A PIN or a card as a second credential removes the problem entirely.
It can be, because it needs no hands and no memory of a code. The Alpha itself is not certified to AS 1428.1, so it is not a DDA compliance solution - but as a practical convenience for someone who finds keys or keypads difficult, touch-free entry is a genuine gain. Our DDA and NDIS chapter covers what certification actually requires.
Power and Batteries
The Alpha takes a rechargeable lithium battery rated at 3200 mAh and DC 8.4V, and a charging cable is supplied. It is a rechargeable pack rather than a set of disposable cells, so there is nothing to buy at the supermarket.
Undervoltage indication starts below 7V. That is a warning threshold, not a cut-off - the lock keeps working past it. Treat the first warning as the cue to charge rather than something to ride out.
It is the rescue path when the battery is completely flat. A standard phone power bank and cable connected to the Micro USB port on the outside panel will power the lock long enough to open it electronically while the internal battery recharges. It is worth trying this once when the lock is new, so you know it works and where the port is.
The mechanical key cylinder is the last line and works in any power state. The rule with override keys is that they live outside the door they open - see storing the override key and where the keyhole is.
App, Remote Access and Guests
Everything at the door and everything in the app while you are within Bluetooth range: add and revoke face profiles, fingerprints, cards and PINs, send app eKeys, issue timed and one-time passcodes, and read the unlock log. What you cannot do is any of that from the other side of town.
Remote lock and unlock, remote passcode creation and deletion, access-log review from anywhere, clock calibration, and compatible Alexa or Google Home control. The G5 page lists the functions, and what a gateway does explains the architecture.
The G5 is itself dual-band, which is precisely why we recommend it over older single-band gateways: the band-steering problem that causes pairing failures on combined 2.4GHz and 5GHz networks does not arise. Our gateway generation comparison has the side-by-side.
Yes. The app issues permanent, timed and one-time passcodes, so a cleaner can hold a code that only works on their scheduled window and a one-off visitor gets a code that dies after a single use. For short-stay specifics see our Airbnb and short-stay chapter.
Yes - the unlock record is readable in the app over Bluetooth, and remotely once a G5 is paired. It is the practical answer to "did the kids get home" without needing a camera.
No. Vault runs its own Vault Smart Locks app platform. Some Vault content elsewhere on the internet conflates the two; the range we sell is not TTLock, does not use the TTLock app, and does not carry the TTLock feature set. Our app platforms chapter compares the ecosystems if you are choosing between them.
Weather, Wear and Longevity
The external module is IP66 rated - dust tight and resistant to powerful water jets from any direction - so ordinary weather on a front door is within scope. The internal module is not rated and must stay inside. Note the manual prints IP66 on its badge and IP67 in its spec table; we quote the lower figure.
Salt air is harder on hardware than rain is, and an IP rating says nothing about corrosion. A covered entry, a regular rinse of the external panel with fresh water, and realistic expectations are the practical answer - our notes on coastal environments are honest about what a Gold Coast beachfront door does to any lock.
Build quality sets the ceiling, but installation quality and environment do most of the deciding - a well-fitted lock on an aligned door in a sheltered position outlasts a better lock fitted badly. Our lifespan guide sets out what actually drives the number.
If your door is already prepped for a comparable lock, the backset matches and the door closes cleanly, this is a reasonable DIY job. If the door needs new preparation, is out of alignment, or is a sliding door you have not worked on before, the install is where the money is saved or lost - see when DIY is appropriate, or book our free site survey on the Gold Coast.
Suitability and Compliance
Only if that door is not fire rated. Most Queensland apartment entry doors are, and fitting an uncertified lock to a fire door is a building code breach, not just a warranty problem. Chapter 05 sets out where fire doors are required and how to identify one, and lists the locks that are certified.
Usually four things: whether the door is fire rated, whether the building has a master key system the door must stay on, whether external appearance is controlled, and whether drilling the door is permitted at all. Our strata checklist runs through them.
Fire doors, doors under about 50mm of stile width, frameless glass doors (the Vault Lumina is the glass-door answer), and gates in unsheltered coastal positions. It is also more lock than an internal office door needs - the Eclipse or Phantom fit that job better.
Twelve months from purchase on the standard range, with 24 months on select Signature Range models where the listing or packaging says so. Batteries, consumables, cosmetic finishes, misuse and incorrect or unlicensed installation are excluded. Vault charges a refundable $200 metropolitan or $250 regional assessment holding fee on a warranty return, refunded when the fault is assessed as genuine. We handle the claim with Vault for you - see Returns and Warranty.
Related products, guides and chapters
Slimline siblings: Vault Zenith (larger credential pools, Black or Silver) · Vault Eclipse (lever or knob, no face) · Vault Phantom (Black or Gold) · Vault Lumina (frameless glass).
Other Vault face-recognition locks: Fortress · Quantum · Olympus · Titan · Nexus · Guardian.
Accessories: Vault G5 Gateway · Hinged/Swinging Mortice · Sliding Hook Mortice · 6068 Mortice · Rebate Kit.
Buyer's Guide chapters: Ch 02 Measuring Your Door · Ch 03 Access Methods · Ch 04 Door Types · Ch 06 Facial Recognition · Ch 08 Gateways · Ch 10 Vault brand profile · Ch 11 Standards and IP Ratings · Ch 12 Installation · Ch 13 Smart Lock FAQ.
Blogs: Vault range overview · Measuring your lock backset · Mechanical key override · Gateways compared · The realities of electronic door locks · Three common install mistakes · Site survey and installation.
What's in the Box - Vault Alpha
- 1 x Front panel (face module, display, keypad, card area, fingerprint reader)
- 1 x Back panel (battery cover, lock and unlock buttons, knob, cylinder housing)
- 1 x Rechargeable lithium battery
- 1 x Lock cylinder
- 1 x Square bar (spindle)
- 2 x M5x30 screw tube
- 1 x Internal hexagonal wrench
- 2 x M5x90 cross countersunk head screw
- 2 x ID cards
- 1 x Charging cable
- 1 x Hole-opening (drilling) template
- 1 x User manual

The mortice or latch is selected to suit your door during checkout - a 6085 hinged mortice as standard, with sliding hook, 6068 and tubular latch options available. The Vault G5 Gateway is a separate purchase and is not included.
Unlike most locks in this range the Alpha ships with its rechargeable lithium battery and a charging cable - there is nothing else to buy to get it running.
Vault Alpha - Dimensions
Vault Alpha - User Manual
PDF Files - Vault Alpha
Fourteen-page manual: lock structure and specifications, inclusions list, dimensions, the seven-step installation sequence, factory reset, and app registration through to face and fingerprint enrolment.
Setup guide for the optional Vault G5 Wi-Fi gateway that adds remote unlocking, remote passcodes and clock calibration to this lock.
Vault Warranty
Vault Smart Locks products are backed by a manufacturer's warranty against defects in materials and workmanship under normal residential or commercial use. All claims are handled locally by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries - start with us and we'll manage the process with Vault on your behalf.
Warranty Summary
How to Make a Claim
- Contact Terry's Gold Coast Smart Locks through the Returns & Warranty page above, with your proof of purchase (invoice or receipt).
- Have your product model and serial number (if applicable) ready, along with a brief description of the fault and your installation address.
- We assess your claim with Vault and advise the outcome and next steps. You may be asked to return the product for inspection.
What This Warranty Does Not Cover
- Normal wear and tear.
- Cosmetic damage that does not affect performance.
- Damage caused by incorrect installation, misuse, neglect, modification, or accident.
- Damage due to improper handling, or installation by an unlicensed technician.
- Products that have been disassembled, tampered with, or where the security seal or warranty label has been removed.
- Battery leakage or failure, or damage caused by incorrect battery usage.
- Environmental or weather damage caused by use outside recommended operating conditions.
- Labour, installation, or removal costs associated with replacing or reinstalling products.
- Work performed before warranty approval or assessment.
Important Notes
Where a Vault product carries an Ingress Protection (IP) rating, that rating is stated on the individual product listing, packaging or technical documentation. Unless stated otherwise in writing, the IP rating applies only to the external-facing side of the lock - not to the internal assembly, handle, battery compartment, electronics, cables or connectors. The internal side must be installed in a dry, sheltered position. An IP rating describes water resistance, not waterproofing: the lock must not be submerged, pressure washed, or exposed beyond its stated rating, and all seals, gaskets and covers must be correctly fitted and undamaged.
Vault's manufacturer policy applies a warranty assessment holding fee, which is refundable if the fault is found to be covered under warranty. If a product is assessed as outside warranty or damaged by an excluded cause, a discounted replacement may be offered. We will confirm any applicable fees and options with you before any assessment proceeds.
This warranty is provided in addition to your rights under the Australian Consumer Law (ACL). 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 have goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure.
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.
Get Your Free Recommendation →How it works - three easy steps:
1. Upload photos
A few clear shots of your door, lock and frame - inside and out.
2. We assess
Our locksmith reviews your setup and requirements - door type, weather exposure, how you want to use it.
3. You get a recommendation
A personalised recommendation tailored to your door, budget and needs. No pressure, no upsell.
Also useful while you are deciding:
