Yesterday, the focus was solely on names and product categories, but now we have our first glimpses. Documents from the US Federal Communications Commission (FCC) reveal the design of the door lock, thermostat, and temperature sensor that LG reportedly developed in collaboration with Apple. These documents also provide further details about the products' functionality.
On Tuesday, Bloomberg reported that LG, in collaboration with Apple, had developed seven smart home devices, including a doorbell, door lock, thermostat, and three cameras. The report did not publish the regulatory documents themselves. MacRumors has now found them in the FCC database: marking drawings, 3D renderings, and technical test reports for three of the seven devices.
In parallel, the leaker pdfu published images and settings options for the same three products in a thread on X. They belong to the accessories that are to be developed around the new smart home hub.
Key Facts at a Glance
- FCC documents reveal for the first time the thermostat, temperature sensor and door lock from the LG series.
- In addition to Wi-Fi, Bluetooth and Thread, the thermostat also has a built-in 60 GHz radar.
- The door lock checks authorization via Bluetooth and determines the position of the unlocking device via ultra-wideband.
- All three devices bear the Matter logo; Apple does not appear in the documents.
- The lock dimensions conform to the two common US door standards.
Three devices at a glance
| Device | Model | Power supply | Radio |
|---|---|---|---|
| Thermostat | TMCTAW5W | 24 volts alternating current | Wi-Fi (2.4 and 5 GHz), Bluetooth, Thread, 60 GHz radar |
| Temperature sensor | TMST2A6W | CR2477 button cell (3 volts) | Bluetooth Low Energy, Thread |
| Door lock | TMCDD15G (Graphite), TMCDD15S (Silver) | four AA batteries | Bluetooth, Thread, NFC, Ultra Wideband |
According to the markings, the devices are manufactured in a Hyundai HT Global factory in Vietnam.
Thermostat with radar
The thermostat has a round, disc-shaped body with a raised rim. The Matter logo and a QR code for setup are located on the back, and the wiring connections are arranged in two curved rows.
A separate test report for the 60 GHz radio technology confirms the presence of a built-in radar. This would allow the thermostat to detect whether someone is in the room or approaching. According to pdfu, there is a setting called "Far Sight Display," as well as displays for humidity, brightness, language, and a calibration of the measured temperature.
2. LG Smart Thermostat • Settings for Far Sight Display, Humidity Display, Brightness, Language. • Calibrated Temperature/Temperature Offset options. https://t.co/Q8AAaxy4ey
— pdfu (@itspdfu) October 7, 2026
Sensor with magnet and replaceable battery
The temperature sensor is also round and runs on a button cell battery. According to pdfu, it measures temperature and humidity and adheres to metal surfaces with its magnetic backing. A metal plate with an adhesive surface is included for other surfaces.
The battery is replaceable, and the sensor alerts you when it's running low.
Door lock with ultra-wide strap
The door lock consists of a tall unit with straight sides and rounded ends. The compartment for the four batteries is located at the top, below which is a large, rotating circular element. According to pdfu, the keypad can be rotated, and an included pin limits the rotation to one side to prevent it from hitting a wall.
An accompanying letter from the FCC is interesting: The lock first checks via Bluetooth whether a device is authorized, and then uses ultra-wideband to determine its position before opening. This is how the automatic unlocking upon approach is supposed to work. According to pdfu, unlocking via touch, an emergency power function, master codes, and two mechanical keys are also included.
Built for American doors
I consider the lock's dimensions to be the most revealing part of the documentation. According to the PDF, it fits distances of 60.3 and 69.9 millimeters between the door edge and the lock center, which translates to 2.375 and 2.75 inches. These are the two most common dimensions for US doors, and all known approvals to date also originate from the USA. The first version of the series is therefore clearly tailored to the US market.
For Apple Home, the Matter logo remains crucial on all three devices. It signifies that the series is not tied to Apple and can also be integrated into other smart home systems.
Would a smart thermostat with radar appeal to you, or is a device that tracks who's moving around in the room already a bit too much? Tell us in the comments where you draw the line.
