Borg BL3400 MG Pro ECP Mechanical Digital Gate Lock – Single Keypad – Marine Grade Pro – Easicode Pro – Black
The Borg BL3400 MG Pro ECP is a fully mechanical digital gate lock designed specifically for external metal box-section gate frames. Unlike door-mounted keypad locks, the BL3400 uses a forend fixing system that clamps directly onto the gate post, with no morticing or drilling through the door edge required. The lock mounts to gate frames from 40mm to 60mm square using the supplied telescopic fixing screws, and includes an anti-climb housing.
The lock is single-sided: a keypad unit on the outside of the gate, and a free-turning lever handle on the inside. The external lever remains clutched until the correct PIN is entered, then releases to retract the latch. The inside lever is always free to turn, providing immediate egress. An optional holdback function allows the inside lever to be held in the open position for free passage.
The BL3400 MG Pro ECP uses Easicode Pro (ECP) on-gate code change, allowing the PIN to be changed while the lock is installed using the included code change key. Marine Grade Pro: MG Pro black external coating tested to 1,000 hours of continuous salt spray. Fully mechanical, no batteries.
Usually same day if ordered before 11am AEST (excluding weekends and Qld public holidays)
These locks use a forend fixing system that clamps directly onto the gate post — no mortice cutting or door-edge drilling required. Designed for square aluminium or steel gate posts from 40–60mm. For profiles wider than 60mm, an optional XL latchbolt extension is available separately.
Finished in MG Pro black marine external grade coating with marine grade stainless steel internal components. Tested to 1,000 continuous hours of salt spray exposure.
Borg warrants corrosion resistance for 12 months from date of sale under specified conditions.
The PIN code can be changed while the lock is installed on the gate using the included code change key. No lock removal, no tools required.
The inside paddle/lever handle is always free to operate, providing immediate egress without entering the code.
Entirely mechanical. No power source, no wiring, and no battery maintenance at any point.
Accepts one active PIN code at a time.
Key Features
- Purpose-built gate lock with forend fixing system – clamps directly onto gate post, no mortice required.
- Anti-climb housing prevents unauthorised climbing.
- Single-sided: keypad outside, free-turning lever inside – inside egress requires no code.
- Easicode Pro (ECP) on-gate code change using the included code change key – no lock removal required.
- Optional code change disabling plug – prevents unauthorised code changes once set.
- Marine Grade Pro (MG Pro) black external coating; marine grade stainless steel internal components.
- 1,000 hour continuous salt spray tested.
- Fully mechanical – no batteries, no wiring, no power source.
- Over 4,000 user-defined code combinations; 14-button keypad.
- Spring loaded, adjustable latch bolt from 65mm to 80mm.
- Optional holdback function on inside lever – removable if not required.
- Telescopic fixing screws – suits gate posts from 40mm to 60mm square.
- XL latchbolt available separately for gate posts wider than 60mm (up to 120mm).
- Reversible on site – suits left or right hand gate swing.
What's in the Box
- Borg BL3400 MG Pro ECP keypad unit with anti-climb housing
- Inside lever handle (with optional holdback function)
- Adjustable spring-loaded latch bolt (65–80mm projection)
- Telescopic fixing screws (suits 40–60mm gate posts)
- Easicode Pro code change key
- Optional code change disabling plug
- Allen key (for latch projection adjustment)
- Fixings and installation hardware
Suitable Uses
- Pool gates, pedestrian gates, and side access gates in coastal and marine environments requiring single-sided keyless entry
- Residential and strata property gates where on-gate code changes are required periodically
- Driveway and side access gates in beachside locations where battery-free marine grade access control is the specification
- Applications where the highest marine grade coating is needed for a single-sided gate lock with on-gate code management
Borg BL3100 / BL3400 / BL3430 Gate Lock Series – Full Product Family
All models are purpose-built gate locks for metal box-section gate frames. All are marine grade, salt-water tested, fully mechanical (no batteries), and finished in black.
MG = standard marine grade. MG Pro = Marine Grade Pro (316 SS internals, MG Pro 2 coating, 1,000hr salt spray). ECP = Easicode Pro on-gate code change. DKO = double key override with deadbolt/code lockout function. Euro cylinder not supplied on DKO and GATEK models.
Full Specifications
Dimensions
Frequently Asked Questions
How does the forend fixing system work?
The lock body sits on the face of the gate frame and clamps onto the gate post using telescopic fixing screws supplied. No drilling through the gate edge or mortice pocket is required. The latchbolt projects from the lock body and engages a strike on the gate post or adjacent frame. The latch projection is adjustable from 65mm to 80mm to suit different gate frame widths. For gate posts wider than 60mm, an optional XL latchbolt extension is available separately.
How do I change the PIN code with ECP?
With the gate open, enter the current code. Insert the code change key over the Φ button, rotate 90° clockwise and hold. Press C to clear, enter new digits, confirm all digits, then release and remove the key. Press C or rotate the lever to finalise. Test at least 5 times before closing the gate. The code is non-sequential — buttons can be pressed in any order.
My gate post is wider than 60mm — what do I do?
An optional XL latchbolt extension is available separately, extending the maximum gate post width to 120mm. Contact us or search "Borg XL latchbolt" to find the correct accessory for your gate profile. Always confirm the correct gate post width before ordering.
Is this lock suitable for a pool gate?
The lock's spring-loaded latch is self-latching on gate close, which aligns with pool safety self-latching requirements. However, confirm all pool gate safety compliance requirements with a licensed pool safety inspector before installation, as compliance encompasses more than just the lock (gate height, clearances, overall system). For the Queensland Pool Safety Standard specifically, confirm with your local inspector.
What is the difference between BL3400MGPROECP and BL3400GATE?
The BL3400MGPROECP has Easicode Pro on-gate code change (no removal required, 4,000+ combinations) and Marine Grade Pro construction (MG Pro 2 coating, 316 SS internals, 1,000hr salt spray). The BL3400GATE uses the tumbler system (lock removal required, 8,000+ combinations) and standard marine grade coating. Choose MG Pro ECP for coastal installations where frequent on-site code changes are needed; choose BL3400GATE for simpler installations where code changes are infrequent.
Additional Information
Monthly: apply a light spray of silicon-based lubricant (GT85 or equivalent) to the keypad and lever surfaces; wipe off excess. Do not use oil-based lubricants. Annually: remove the lock and spray internally; test all buttons and lever operation. Refer to the Borg Servicing Guide PDF.
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled.
What's In The Box – Borg BL3400MGPROECP
- Borg BL3400 MG Pro ECP keypad unit with anti-climb housing
- Inside lever handle (with optional holdback function)
- Adjustable spring-loaded latch bolt (65–80mm projection)
- Telescopic fixing screws (suits 40–60mm gate posts)
- Easicode Pro code change key
- Optional code change disabling plug
- Allen key (for latch projection adjustment)
- Fixings and installation hardware
Borg BL3400 / BL3100 Series – Dimensions


All BL3100 and BL3400 series locks use the same forend fixing system and adjustable latchbolt mechanism. Latchbolt projection adjustable 65–80mm. XL latchbolt available separately for gate posts wider than 60mm (up to 120mm).

Borg Locks Warranty – Australia
What is Covered
- Mechanical defects in materials and workmanship
- Defects arising under normal use and service conditions
- Repair or replacement of defective units at the discretion of the Australian distributor (LSC)
What is Not Covered
- Damage arising from misuse, vandalism, or abuse
- Damage resulting from improper installation
- Locks that have been dismantled — dismantling invalidates the warranty
- Normal wear and tear
- Cosmetic damage not affecting function
How a Warranty Claim Works
Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor for Borg Locks. If the returned item is found by LSC to be defective, it will be repaired or replaced. Products must be returned to the LSC office with freight charges prepaid within the warranty period. A detailed assessment report is provided to the customer after examination.
Contact Terry’s Locksmiths first — we will assess the issue and manage the warranty process with LSC on your behalf. You do not need to contact LSC or Borg Locks UK directly.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside — and does not limit — these statutory rights.
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