McGrath G3 Ethernet Gateway - PoE & Type-C USB
The McGrath G3 Gateway is a wired Ethernet bridge that connects compatible McGrath smart locks to your network infrastructure via an RJ45 connection. It enables secure remote management through the McGrath Locks App, and is aimed at commercial installations where structured cabling and PoE switching are already in place.
This is not a lock. The G3 does not provide any mechanical security and does not store user credentials independently. It acts purely as a communication bridge between Bluetooth-enabled McGrath devices and your Ethernet network.
The G3 supports both Power-over-Ethernet (PoE) and Type-C USB power input, making it well suited to structured-cabling sites. For a plain-English explanation of what a gateway does, see Chapter 08 - Gateway Comparison.
Usually same day if ordered before 11am AEST (excluding weekends and QLD public holidays).
Key Features
- RJ45 Ethernet (wired) network connection.
- Supports Power-over-Ethernet (PoE) or Type-C USB power.
- Recommended lock range of approximately 10-15 metres (environment dependent).
- Supports 100+ compatible locks per gateway.
- Mesh networking capability between multiple gateways.
- Wall or ceiling mountable.
- IP54-rated housing.
- Managed through the McGrath Locks App on iOS and Android.
How the G3 Gateway Works
The G3 connects directly to your network via RJ45 Ethernet and communicates with compatible McGrath locks over Bluetooth. When you issue a remote command in the McGrath Locks App, the instruction travels over the internet to the gateway, which then relays it locally to the lock over Bluetooth. The gateway does not perform any locking function itself - it acts purely as a secure communication bridge between your network and the lock. This is the same Bluetooth-plus-gateway model used across the TTLock platform.
Remote features rely on the gateway having both power (PoE or USB) and an active internet connection. If either drops, the lock still works normally in person and over local Bluetooth - only remote access is paused until the connection is restored. See what happens when the internet goes down.
App Platform & Data Hosting
The G3 is managed through the McGrath Locks App - a customised, McGrath-branded platform available on iOS and Android.
The platform is managed, supported and distributed locally in Australia, with Australian staff handling warranty, troubleshooting and account queries. The underlying cloud infrastructure is provided by TTLock, a globally deployed IoT platform. To see where the app fits across brands, read Chapter 15 - Smart Lock App Platforms and the which app platform is right for you guide. Compatible McGrath Locks & Devices
The G3 adds remote access to Bluetooth-enabled McGrath locks and controllers listed as gateway-optional. Commonly paired devices include:
- McGrath Ashgrove smart deadbolt (raised-button keypad with Braille).
- McGrath Kedron smart deadbolt (tempered-glass screen with fingerprint).
- McGrath Grange entrance pull handle smart lock.
- McGrath UltraSecua digital security screen-door smartlock.
- McGrath MLA02-S single-door access controller.
Not every McGrath device requires or supports a gateway - some controllers include built-in Wi-Fi. Confirm your specific model is gateway-optional before ordering. For the platform-wide rules on when a gateway is needed, see the gateway selection guidance in Chapter 14.
Available Finish Options
White
(This Product)
STK MLG3GWPOE
The G3 is supplied in a single white housing. Finish does not affect functionality or performance. [CONFIRM: housing colour - nearest swatch used pending confirmation.]
Full Specifications
Dimensions
Gateway Model Family - McGrath G-Series
The G3 is the wired (Ethernet / PoE) option in the current McGrath gateway range. The table below shows how the current models differ so you can choose the right one for your network.
Not sure which generation suits your setup? Read the full G2 vs G3 vs G4 vs G5 gateway comparison, or the G3 section of Chapter 08.
Accessories & Spares
Suitable Uses
- Commercial and multi-tenant sites with structured Ethernet cabling and PoE switching.
- Installations where a wired, always-on network link is preferred over Wi-Fi.
- Locations with weak or congested Wi-Fi where a hardwired gateway is more reliable - see placement guidance.
- Managed access across many doors - up to 100+ devices per gateway, with mesh linking for larger coverage; supports PMS integration for automated access.
Frequently Asked Questions
No. The G3 can be powered by Power-over-Ethernet or by Type-C USB. PoE is convenient on structured-cabling sites, but a USB power source works equally well.
No. The G3 is a network bridge only - it has no locking hardware and stores no user credentials. It relays commands between the app and your McGrath lock.
Around 10-15 metres, depending on walls and interference. See the gateway placement guidance in Chapter 08.
The lock still works in person and over local Bluetooth. Only remote (off-site) app control is paused until the connection returns.
The McGrath Locks App on iOS and Android.
It is a McGrath-branded platform, supported locally in Australia, running on TTLock cloud infrastructure. For day-to-day tips, see TTLock tips and tricks.
Additional Information
- A gateway is only needed for remote (off-site) control. If a lock is only ever operated in person or over local Bluetooth, a gateway is optional - see do you really need Wi-Fi.
- The G3 is the wired choice for commercial sites; the G4 suits sites with no fixed internet (4G SIM), and the G5 suits modern dual-band Wi-Fi routers.
- The IP54-rated housing gives basic dust and splash resistance, but the gateway is intended for sheltered indoor mounting, not full outdoor exposure.
- For a commercial-grade alternative on other platforms, compare the Lockton E-Series G2 gateway (TTLock, Wi-Fi) or the KAS S1 access-control gateway (BLE + Sub-GHz, PoE).
- Terry's supplies McGrath through LSC, giving local warranty and support - see why that matters for long-term confidence.
McGrath G2/G3 Gateway Technical Datasheet
McGrath gateways differ in network type (Wi-Fi or Ethernet), power options and generation features. To determine which gateway suits your installation, read the detailed comparison guide: Differences Between McGrath G2, G3, G4 and G5 Gateways.
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 G3 Ethernet Gateway
- 1 x McGrath G3 Ethernet Gateway
- 1 x USB-C cable
McGrath G3 Gateway - Dimensions
McGrath G3 Gateway - Product Brochure
McGrath G3 Gateway - PDF Files
McGrath G2/G3 Gateway Technical Datasheet
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
It can be overwhelming with all the choices out there. We can help! We are experts with decades of experience in fitting locks of all types, not just Smart Locks. It is a free service we offer, and with just some photos and a few minutes of your time you can get expert advice and product recommendations tailored precisely to suit your needs.
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