If you’ve been researching smart locks for an Airbnb property in Australia, you’ve almost certainly come across TTLock-based hardware — sold here under brands including McGrath, Lockton and Austyle.

Unlike Igloohome’s offline-first algoPIN model, TTLock becomes most powerful when paired with WiFi, a gateway, and third-party booking management software. That’s a different proposition with different strengths — and it suits a different kind of host.

This guide covers:

• What TTLock actually is, and how it differs from the hardware brands that use it
• Why automation requires a PMS (and which PMS platforms integrate)
• What TTLock can and cannot do without WiFi
• The McGrath G-series gateway range — how to choose between G2, G3, G4 and G5
• When TTLock is the right answer and when Igloohome will serve you better

For the foundational comparison, start with Airbnb Smart Locks in Australia: Do You Really Need WiFi? For the alternative platform deep-dive, see Using Igloohome for Airbnb in Australia.

Important Clarification for Australian Hosts

Airbnb’s built-in direct smart lock connection inside the Airbnb host app is not broadly available in Australia. Hosts arriving from US-focused tutorials often expect to link a TTLock directly inside Airbnb — this won’t work in practice for most Australian listings.

Instead, the typical Australian automation flow uses a Property Management System (PMS) as the bridge between Airbnb bookings and the TTLock platform:

The PMS does the work that’s built into the Igloohome app for free: it reads the Airbnb reservation, generates an appropriate PIN, pushes it to TTLock’s cloud, and TTLock’s cloud pushes it to the lock via the gateway. This adds complexity, but in exchange you get a tool genuinely designed for managing many properties at once.

TTLock vs McGrath vs Lockton vs Austyle — What’s the Difference?

This is a common source of confusion. Here’s the relationship:

• TTLock — the cloud platform and mobile app. Not a hardware brand. Owned by Sciener.
• McGrath — an Australian-suited smart lock hardware brand. Locks are manufactured to fit Australian door standards (60mm/70mm backsets, mortice formats, narrow aluminium, etc.). McGrath locks operate on the TTLock platform.
• Lockton — another hardware brand running on TTLock.
• Austyle — another hardware brand running on TTLock.

The automation capabilities (PIN delivery, remote unlock, PMS integration, gateway behaviour) are identical across these hardware brands — they all use the same TTLock app and cloud infrastructure. The differences are:

• Physical hardware format and door compatibility
• Build quality and finish options
• Local distribution, warranty support, and aftermarket parts availability
• Price point

For an independent profile of each brand, including acknowledged weaknesses, see Chapter 10 — Smart Lock Brand Profiles in the Buyer’s Guide.

PMS Platforms That Integrate with TTLock and Airbnb

Six major Property Management Systems integrate with TTLock and pull Airbnb bookings to drive lock automation. Each has its own positioning:

For the full technical walkthrough of how TTLock integrates with PMS platforms, see Chapter 14 — TTLock Platform Guide in the Buyer’s Guide.

Compatibility, pricing and features change. Always confirm current TTLock integration status directly with the PMS provider before committing.

What TTLock Can Do Without WiFi

TTLock-based locks can operate as standalone smart locks without any internet connection at the property:

• Generate time-based offline PINs (valid only within a specified time window)
• Bluetooth unlock when within range of the paired phone
• Master and guest Bluetooth keys
• RFID card or fingerprint access (where the hardware supports it)
• Mechanical key override

You can create codes manually via the TTLock app or web portal, share them with guests, and the lock will validate them locally using its internal clock.

The lock still works — but the automation that makes TTLock genuinely powerful becomes manual. For single-property hosts who don’t mind creating codes by hand, this can be enough. For anyone managing more than one property, this is where Igloohome’s Airbnb Connect starts looking attractive instead — see our Igloohome guide and the platform comparison blog.

What Changes With a Gateway and PMS

This is where TTLock genuinely outperforms the offline-first model. With a gateway connected to property WiFi and a PMS connected to your Airbnb account:

• New bookings trigger automatic PIN creation and delivery
• Cancellations trigger automatic PIN revocation in real time
• Entry logs stream to the cloud as events happen
• Cleaner attendance can be tracked via dedicated cleaner PINs
• Remote unlock is available from your phone anywhere with internet
• Battery levels are monitored across all properties from one dashboard

For multi-property operators, the value compounds quickly. A 10-property operator with TTLock + Hospitable might spend less than an hour a week on access management; the same operator running everything manually would spend that per day.

McGrath G-Series Gateways — Which One to Choose

The McGrath gateway lineup is the most comprehensive on the TTLock platform in Australia. There are four generations, each suited to a different deployment:

For a side-by-side comparison of the entire gateway ecosystem — including igloohome’s Wi-Fi Bridge and TTLock-generic gateways — see Chapter 08 — Smart Lock Gateway Comparison in the Buyer’s Guide.

Scaling Across Multiple Properties

This is where TTLock genuinely outperforms Igloohome’s offline model. A few practical considerations when scaling:

• One PMS per portfolio. Pick the PMS first, then standardise locks across all properties. Mixing PMS platforms across properties creates avoidable complexity.
• One gateway per property. A G4 or G5 supports up to 100 locks but range matters — one gateway per property is usually simpler than trying to cover multiple properties from a single point.
• Standardise hardware where possible. If your 8 properties all use the same McGrath model, your cleaners and trades learn one interface, and spare parts cover all sites.
• Battery monitoring is the win. Across many properties, knowing remotely which locks need batteries (rather than getting a midnight call from a guest) is the single biggest operational benefit of the gateway investment.
• Cleaner attendance via dedicated PINs. Issue each cleaner a permanent PIN. Logs show who entered when. Useful for billing disputes and quality control.

For the host-type breakdown of when multi-property TTLock scaling outperforms the Igloohome approach, see Chapter 07 — Airbnb & Short-Stay Rentals in the Buyer’s Guide.

When TTLock Is the Right Answer — and When Igloohome Will Serve You Better

Choose TTLock/McGrath when:

• You manage three or more properties
• You already use (or plan to adopt) a PMS like Hospitable or Uplisting
• You need the broadest door format compatibility for Australian residential and commercial doors
• Reliable WiFi is already available at each property
• Cleaner attendance tracking and battery monitoring matter operationally

Choose Igloohome when:

• You host a single property or a small number of properties
• WiFi at the property is patchy, expensive (4G-only) or non-existent
• You don’t want the complexity of running a PMS
• Airbnb Connect’s native booking integration is enough on its own
• You want the option to start without a gateway and add one only if needed later

Neither platform is universally better. They’re engineered for different problems. The decision framework in the foundational guide — Airbnb Smart Locks in Australia: Do You Really Need WiFi? — covers the full decision matrix.

Related Guides in This Series

Need Help Choosing the Right Smart Lock for Airbnb?

Whether you’re running one property or scaling multiple short-stay listings, we can help you choose the right lock, gateway and automation setup.

Disclaimer: Third-party software platforms mentioned (Hospitable, Uplisting, RemoteLock, Hosthub, SabeeApp, Cloudbeds) are independent services. Compatibility and feature sets change over time. Always confirm current TTLock integration support directly with your chosen PMS provider before purchasing hardware. Gateway model availability and specifications are subject to change — confirm current options with us before ordering for a specific deployment.