McGrath MLA02-S Slim Single 12V Door Controller - Bluetooth - Wi-Fi - 200 Users
The McGrath MLA02-S is a compact standalone access controller that manages access to a single door, gate, or automated entry point. Hardwired at 12 to 18 volt DC, it controls external locking hardware - electric strikes, magnetic locks, automatic doors, garage doors, sliding gates and boom gates - via its built-in relay output. It does not include a keypad or fingerprint reader; access is managed through the McGrath Locks App via Bluetooth and optionally via a Wi-Fi gateway.
This 200-user model suits smaller residential sites, single-tenancy commercial premises, rental properties and light-duty access control installations where a compact Bluetooth controller with remote credential management and a full audit trail is required. The MLA02-S also includes a built-in doorbell contact, an auto-backlit touch keypad for PIN entry, and an exit button (REX) input for egress control.
Usually same day when ordered before 11am AEST (excluding weekends and QLD public holidays).
The MLA02-S does not include a latch, deadbolt, or motor. It is an access controller that drives external locking hardware via relay output. A compatible electric strike, magnetic lock, gate motor or automatic door opener must be supplied and wired separately.
Key Features
- Standalone 12 to 18 volt DC access controller for a single door, gate or automated entry.
- Supports up to 200 users managed via the McGrath Locks App.
- Auto-backlit capacitive touch keypad for PIN code entry (4 to 9 digits).
- Dual RFID frequency: 125KHz EM cards and 13.56MHz MIFARE cards/fobs.
- Bluetooth 4.1 BLE for local app management.
- Wi-Fi remote access and management available via a compatible McGrath gateway (sold separately).
- Built-in doorbell contact (Doorbell A and Doorbell B terminals).
- Request-to-exit (REX/OPEN) input for egress without credentials.
- Scramble / pseudo passcode: enter any digits before or after the real code to unlock.
- Auto-lock within 5 seconds of unlocking.
- Keypad lockout after 5 incorrect PIN attempts (5-minute lock).
- Time-based access permissions - schedule user access by hour, day or week.
- Full audit trail with real-time push notifications available via the app.
- Compatible with Amazon Alexa and Google Home via the TTLock platform.
- IP66 rated zinc alloy housing for indoor and outdoor installations.
The MLA02-S is a standalone hardwired controller. All users, PIN codes and RFID credentials are stored and managed within the device via the McGrath Locks App over Bluetooth. When a valid credential is presented - by keypad PIN, RFID card/fob, or app touch-to-unlock - the MLA02-S activates its internal relay to release the connected electric strike, magnetic lock, gate motor or automatic door.
A Request-to-Exit (REX) terminal allows a hardwired exit button to open the relay from the inside without presenting a credential. The integrated doorbell contact can be wired to a bell push so visitors can announce themselves. Wi-Fi remote management requires a separately purchased gateway; without one the controller operates fully offline via Bluetooth. For platform guidance see the TTLock Platform Guide.
Access Methods
For background on how PIN, RFID and Bluetooth work in an access-control context, see the Access Methods chapter of our Smart Lock Buyer's Guide.
McGrath Locks App
The MLA02-S is managed through the McGrath Locks App, McGrath's customised build on the TTLock platform. The app handles user enrolment, eKey issue and revocation, time-limited and one-time passcodes, scheduling, access logs and real-time push notifications. All management is over Bluetooth when local; add a compatible McGrath gateway for remote access over Wi-Fi from anywhere.
The McGrath Locks App is available on Apple and Android devices (iOS 7.0 and above, Android 4.4 and above). The TTLock platform also supports Amazon Alexa and Google Home via gateway. For day-to-day platform guidance see the TTLock Platform Guide, TTLock Tips and Tricks, and Using TTLock for Airbnb in Australia.
Power & Wiring
- Hardwired 12 to 18 volt DC regulated power input (Red wire = Power+).
- Ground: Black wire (GND).
- Relay output: NO (White) / NC (Green) / COM (Brown) terminals.
- Lock output load: less than 2A.
- Working current: less than 80mA.
- Unlock time: 1 to 1.5 seconds.
- Exit button (REX): Yellow wire (OPEN terminal).
- Doorbell contact: Blue wire (Doorbell A) and Grey wire (Doorbell B).
Professional installation is recommended for correct wiring and configuration. Our Installation & Troubleshooting chapter covers hardwired access-control considerations, and our site survey and installation service is available on the Gold Coast.
Environment & Construction
- IP66 rated for indoor and outdoor installation.
- Zinc alloy housing with acrylic keypad panel.
- Operating temperature: -20°C to +60°C.
- Operating humidity: 10% to 98% RH.
For background on IP ratings in Australian conditions, see the Australian Standards chapter.
Suitable Uses
- Single-door commercial access control for electric strikes, magnetic locks and auto doors.
- Gate motor control for sliding gates, boom gates and garage doors.
- Strata and multi-tenancy buildings requiring high user capacity and remote credential management.
- Managed rental properties and accommodation where time-based eKey access is needed.
- Any installation where an egress button (REX) and doorbell contact are required at the same entry point.
- Sites wanting offline Bluetooth operation with optional gateway upgrade for Wi-Fi remote access.
Available Finish Options
Silver
(This Product)
STK MLA02S200
Finish selection does not affect functionality, compliance, or performance.
Item Code Family - Access Control Range
Explore our full range of smart keypads and access control accessories including standalone controllers, wireless keypads, and fingerprint readers.
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Compatible Gateways & RFID Credentials
The MLA02-S operates offline via Bluetooth and can optionally connect to any of the McGrath Wi-Fi gateway range. It reads both 125KHz EM and 13.56MHz MIFARE credentials, so existing EM cards on-site will work alongside MIFARE fobs and cards.
Unsure which gateway to choose? The Gateway Comparison chapter and G2 vs G3 vs G4 vs G5 comparison walk through the key differences.
Full Specifications
Dimensions
MLA02-S Housing: 148mm (L) × 43.5mm (W) × 22mm (D)
What's In The Box
- MLA02-S door controller
- Pigtail wiring lead (multi-core)
- Mounting screws and fixings
McGrath MLA02-S Door Controller - Datasheet v2
Frequently Asked Questions
No. It is an access controller that drives a separately supplied electric strike, magnetic lock, gate motor or automatic door via relay output. Locking hardware must be wired separately.
No. The MLA02-S communicates locally via Bluetooth 4.1. Remote Wi-Fi management requires a separately purchased McGrath gateway. The Gateway Comparison chapter and G2 vs G3 vs G4 vs G5 comparison explain the options.
The MLA02-S reads both 125KHz EM cards and 13.56MHz MIFARE cards/fobs - dual frequency. This means existing 125KHz EM cards already in use on-site will work, alongside McGrath's MIFARE cards, fobs, stickers and wristbands.
Both run the same MLA02-S hardware and platform. The only difference is user capacity: this 200-user version suits smaller residential and single-tenancy sites, while the 1,000-user version is appropriate for commercial or multi-tenancy installations with more users and higher RFID credential volume. If you also need fingerprint access, see the MLA02F with Fingerprint.
Yes for most installations. The MLA02-S is a hardwired 12 to 18 volt DC device driving separate locking hardware. Correct wiring of relay (NO/NC/COM), REX, doorbell and power terminals requires electrical or locksmith trade knowledge. Our site survey and installation service is available on the Gold Coast.
McGrath smart locks and access control are backed by long-established Australian industry partners and supported locally by Terry's. Read Why Terry's, LSC and McGrath Locks Give Long-Term Confidence, or see the McGrath section of our Brand Profiles chapter.
Additional Information
The MLA02-S sits in a practical middle ground in the McGrath access-control range. Compared with the standalone keypads (TGFP43, TGFP70, RBH52), it has no built-in fingerprint reader and no integral keypad backplate for surface-flush mounting — it is a controller module that suits installations where the unit will be mounted behind a wall plate or inside a housing, or where a keypad-free solution is acceptable. Its standout features are the dual-frequency RFID reader (125KHz + 13.56MHz), the built-in doorbell contact, and the REX exit button terminal — all in a slimline 43.5mm wide package.
The 200-user capacity is the right sizing for most residential and small-commercial installations: a single gate, garage, office door, or rental property where the credential count is unlikely to exceed that threshold. If you anticipate needing more than 200 users - or higher RFID card volume - the 1,000-user version runs the same hardware and platform. For buyers comparing TTLock-based access control against other platforms, the App Platforms chapter, Which App Platform Is Right for You, and the TTLock Platform Guide are the recommended starting points. For understanding how access methods compare across the full product range, see the Access Methods chapter.
Warranty
12-month warranty against defects in materials and workmanship (24-month on ALBION, ASCOT, WINDSOR, ULTRA SECUA, HAMILTON, BARDON and STAFFORD models). McGrath Locks will repair, replace, or refund at their discretion. Proof of purchase required for all claims. Returns & Warranty | McGrath Locks Warranty
What's In The Box - McGrath MLA02-S
- MLA02-S door controller
- Pigtail wiring lead (multi-core)
- Mounting screws and fixings
McGrath MLA02S200 - Real Installations
McGrath MLA02-S - Product Brochure
McGrath MLA02-S Door Controller - Datasheet v2
McGrath Locks Warranty
Warranty Summary
How to Make a Claim
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries (the place of purchase) within the applicable warranty period.
- Supply your proof of original purchase — a receipt or tax invoice is required.
- Provide a clear description of the fault and your contact details.
- You may be asked to return the product for assessment before a remedy is determined.
- McGrath Locks will, at their discretion, repair the product, replace it with the same or an equivalent model, or provide a refund of the purchase price.
Exclusions
This warranty does not cover:
- Normal wear and tear
- Products that have been disassembled
- Damage caused by improper handling, incorrect installation, misuse, abuse, neglect, modification, or accident
- Installation by unlicensed persons (including non-licensed locksmiths or technicians)
- Products not used in accordance with the supplied instructions
- Cosmetic damage that does not affect functionality
- Labour or installation costs related to the removal or reinstallation of products
- Exposure to conditions outside normal environmental use
- Work completed before warranty approval
- Damage caused by battery leakage, battery failure, or force majeure
Important Notes
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 they fail to be of acceptable quality and the failure does not amount to a major failure. This warranty is provided in addition to your rights and remedies under the Australian Consumer Law.
Further Information
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