LG and Matter: which devices work, TV hub and setup
The short answer for lg matter devices: LG currently certifies Thread-based sensors, buttons, wall switches and a smart plug, with part numbers such as the TMSA2A4W air-quality sensor, TMSDAA4W door/window sensor and TMCP114W plug in the CSA vendor 4142 ledger. A webOS 23 or later LG TV can act as the ThinQ Matter hub, but LG does not document the TV as a Thread border router; the ThinQ ON hub does list Thread border-router support. The Apple Home Collection thermostat TMCTAW5W is the only LG thermostat with a Matter certificate so far.
This page is built from the CSA certification ledger and product pages, LG support and product pages, Apple's announcement and store pages, platform Matter pages, and reports from MacRumors and Matter Alpha. Product lists and certificates change as manufacturers add or update models, so treat this as a snapshot, not a permanent list.
CSA ledger details for every LG Matter part number
The CSA ledger for LG vendor 4142 lists ten Matter products. The latest compliance records for the parts MatterCheck tracks, fetched 28 October 2026, are:
- TMSA2A4W Air Quality Sensor — CSA26561MAT56105-24, certified software 1.3.00, certified 17 October 2026, Thread and Bluetooth transport, Matter 1.2.
- TMSDAA4W Door and Window Sensor — CSA261HMMAT51338-24, certified software 1.3.00, certified 1 April 2026, Thread and Bluetooth transport, Matter 1.2.
- TMSTAA4W Temp and Humidity Sensor — CSA261G7MAT51287-24, certified software 1.3.00, certified 13 March 2026, Thread and Bluetooth transport, Matter 1.2.
- TMSMAA4W Motion Sensor — CSA261G6MAT51286-24, certified software 1.3.00, certified 13 March 2026, Thread and Bluetooth transport, Matter 1.2.
- TMCB1B4W Smart Button (1 Button) — CSA26226MAT52078-24, certified software 1.3.00, certified 16 April 2026, Thread and Bluetooth transport, Matter 1.2.
- TMCB2B4W Smart Button (2 Button) — CSA2624YMAT52178-24, certified software 1.3.00, certified 20 April 2026, Thread and Bluetooth transport, Matter 1.2.
- TMCS1W4W Smart Wall Switch (1 Button) — CSA263LFMAT54067-24, certified software 1.3.00, certified 2 June 2026, Thread and Bluetooth transport, Matter 1.4.
- TMCS2W4W Smart Wall Switch (2 Button) — CSA2639HMAT53637-24, certified software 1.3.00, certified 17 May 2026, Thread and Bluetooth transport, Matter 1.4.
- TMCS3W4W Smart Wall Switch (3 Button) — CSA263LGMAT54068-24, certified software 1.3.00, certified 2 June 2026, Thread and Bluetooth transport, Matter 1.4.
- TMCP114W Smart Plug — CSA263T9MAT54349-24, certified software 1.4.00, certified 14 June 2026, Thread and Bluetooth transport, Matter 1.4.
The ledger also carries older firmware records for many of these parts; the list above uses the latest compliance record for each part. Browse the full tracked list on MatterCheck's SKU list, or verify any certificate with how to check CSA certification.
Why the TMST2A6W Temperature Sensor still has no Matter certificate
Apple's Home Collection announcement names LG as a collaborator on thermostats, temperature sensors, a video doorbell and a door lock, and says the thermostats and temperature and humidity sensors are Matter compatible. MacRumors' FCC report identifies the sensor as model TMST2A6W, with a Matter setup code on its back, Bluetooth Low Energy and Thread radios, and a CR2477 coin battery; the report says it measures temperature and humidity and has a magnetic back or adhesive metal plate for mounting.
The LG vendor 4142 ledger fetched 28 October 2026 does not list a TMST2A6W record, and the CSA product page for the LG Smart Thermostat does not name the TMST2A6W sensor. The separate LG Smart Deadbolt Lock CSA page shows an Aliro certificate, CSA26020ALR80032-UW, even though its product text says Matter compatible. For ship dates and availability, see the Apple Home Collection ship date guide.
The TMCTAW5W thermostat: CSA certificate CSA264ZQMAT55878-24 and what it can do
MacRumors' FCC look at LG's Apple Home products identifies the thermostat as model TMCTAW5W, with a round body, 24-volt AC power, 2.4 GHz and 5 GHz Wi-Fi, Bluetooth, Thread and a 60 GHz radar. The same report says a leaker listed settings for Far Sight Display, humidity display, brightness, language, calibrated temperature and temperature offset.
The CSA product page for LG Smart Thermostat lists Matter certificate CSA264ZQMAT55878-24, firmware 1.1.0, hardware version 1.1, certified 29 September 2026, Matter 1.5, with Wi-Fi, Thread and Bluetooth transport. It also describes Heat, Cool, Auto and Off modes, a 2.4-inch LCD, NFC-based unpowered commissioning, proximity and radar sensing, and support for Apple HomeKit and ThinQ Home. The CSA ledger record for pid 8864 carries the same certified software and date, but does not print a part number.
webOS 23 TVs can be the LG hub, but are not documented as Thread border routers
LG Korea's ThinQ app page says you need a webOS 23 or later TV that supports Matter devices, registered in the ThinQ app and set as the home hub, to use Matter devices in ThinQ. The same page does not claim the TV is a Thread border router. MatterCheck's TV hub and casting guide notes Google's LG case study says local Matter control is over Wi-Fi on select LG TVs, not Thread.
ThinQ ON: the LG border router for TMS and TMC Thread devices
LG's TMSA2A4W Air Quality Sensor page includes a ThinQ ON section that says the hub has border router function for low-power Matter devices, including Thread devices, plus Wi-Fi and Ethernet devices. The TMSDAA4W Door Sensor page FAQ says ThinQ ON is required to use the sensor in the ThinQ app, and that other smart home apps require a Matter hub with Thread border router support.
Matter Alpha reported that LG showcased an LG version of Homey Pro called ThinQ ON with Matter and Thread capabilities, but has not announced availability for its Thread collection outside Korea. The report also says the TMCS2W4W 2-button wall switch can operate with or without a neutral wire, which the author called rare for Matter-enabled switches.
Pairing the TMSDAA4W, TMCP114W and TMCS wall switches in the apps you already have
Because the TMSDAA4W door/window sensor, TMCP114W smart plug and TMCS1W4W, TMCS2W4W and TMCS3W4W wall switches use Thread, Apple Home, Google Home, Alexa, SmartThings and Home Assistant all need their own Matter hub or Thread border router. Apple's Matter page says the Home app supports air conditioners, bridges, lights, locks, outlets, switches, thermostats, blinds and shades, and motion, ambient light, contact, temperature and humidity sensors. With iOS 18 or later an iPhone can add and control Matter accessories without a home hub, though Apple recommends a home hub for the best experience; Thread-based accessories need a Thread-enabled home hub such as Apple TV 4K, HomePod (2nd generation) or HomePod mini.
Google's Matter page says you need a Matter-enabled hub device before adding Matter devices, and Thread devices need a hub that also works as a Thread border router—such as Nest Hub (2nd gen), Nest Hub Max, Nest Wifi Pro or Google TV Streamer (4K). IPv6 must be enabled on your network. Amazon's Matter setup page says to open the Alexa app, go to Devices, tap the plus, choose Add Device, select the Matter icon, then scan the Matter QR code or enter the pairing code; Thread-based devices need a Thread-enabled Alexa hub nearby.
Home Assistant's Matter docs say most Matter devices use Bluetooth only during commissioning, then communicate over Wi-Fi or Thread. You need the Matter integration, a Thread border router for Thread devices, and the Companion app to scan the QR code or enter the commission code. SmartThings, Homey and Hubitat support appears in the table below, separated by device type and pairing versus control.
MatterCheck's device-type table for the LG TMS and TMC line
The matrix below is device-type support only; it is not a test of LG hardware. One word means pairing and control match; two words are pairing / control.
| Device type | Apple Home | Google Home | Alexa | SmartThings | Home Assistant | Homey | Hubitat |
|---|---|---|---|---|---|---|---|
| Air quality sensor | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Door and window sensor | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Smart button | Yes / Partial | Yes / Partial | Yes / Partial | Yes / Partial | Yes / Partial | Yes / Partial | Partial |
| Wall switch (on/off light) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Smart plug | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Thermostat | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
For Hubitat users, MatterCheck's matrix now rates these device types from Hubitat's official compatible-devices list and release notes (Hubitat List of Compatible Devices, fetched 2026-10-28): air quality sensors, door and window sensors, wall switches, smart plugs and thermostats pair, and smart buttons pair only partially. Confidence is Med, and none of those Hubitat sources names an LG TMS or TMC device, so check Hubitat's list for your exact model before buying. Follow a device type link for automation and confidence details.
Quick answers for LG ThinQ, the LG TV hub and Home Assistant
Is LG ThinQ Matter compatible?
Yes, in a specific way. LG Korea's ThinQ app page says Matter devices work in the ThinQ app only when a webOS 23 or later TV is set as the home hub. The same page lists Matter support alongside HCA and third-party IoT partners, so ThinQ is not a standalone Matter controller for every LG phone or tablet.
Buy the TMS/TMC Thread devices only if you already run Apple Home, Google Home, Alexa, SmartThings, Home Assistant, or Homey with a Thread border router, or if you own a ThinQ ON hub; skip them if your only hub is a webOS 23 TV, because LG does not document the TV as a Thread border router. The TMCTAW5W thermostat is the only LG thermostat with a Matter certificate as of 28 October 2026.
This guide was drafted by AI from the dated sources linked above and checked against them by automated fact-check passes before publishing. How our content is made.