LG Air Quality Sensor
Firmware actively maintained: latest certified update on October 17, 2026
Thread border router required. This device uses Thread and needs a Thread border router, for example a HomePod, Apple TV, Nest Hub or Echo. Compare border routers →
LG Air Quality Sensor by LG Electronics: certified Matter device (Air quality sensor). Radio: Thread. Matter 1.2.
Price comparison
No price comparison has been set up for this device yet.
Compatibility with smart home platforms
Whether the platform supports this device type (Air quality sensor). This is an assessment based on the platforms’ lists, not a guarantee for every feature.
- Google HomeDevice type supported
- Amazon AlexaDevice type supported
- Apple Home *Device type usually supported
- SmartThings *Unclear, check the manufacturer’s information
- Home Assistant *Device type usually supported
This device uses Thread: the platform needs a Thread border router, for example a HomePod, Apple TV, Nest Hub or an Echo with Thread. Compare border routers →
Data as of 2026-10-28. Platforms keep adding support; check the manufacturer’s information before buying. Platforms marked * publish no list of their own, so the entries are based on reports.
Technical data
- Manufacturer
- LG Electronics
- Product type
- Sensors
- Device type
- Air quality sensor
- Radio protocol
- Thread
- Matter version
- Matter 1.2
- Model number
- TMSA2A4W
- First certified
- September 13, 2024
- Latest certification
- October 17, 2026
- Certificate ID
- CSA26561MAT56105-24
- Vendor / product ID (VID/PID)
- 0x102E / 0x2010 (4142 / 8208)
Setup (manufacturer instructions)
Press the reset button on the product to enter the commissioning standby state. The LED will blink green.
Reset LG Electronics LG Air Quality Sensor
How to factory reset LG Electronics LG Air Quality Sensor so you can set up the Matter device again or hand it on. Remove the device in your controller first, otherwise an entry stays behind there.
Manufacturer’s note (certification database)
To reset the product, press the reset button on the product for more than 5 seconds. The LED will blink red and then green.
Resetting erases the device’s settings and assignments.
How do I factory reset LG Electronics LG Air Quality Sensor?
The steps are in the section on this page. Remove the device in your controller first, then perform the reset.
Do I have to remove the device from the app first?
Ideally yes: remove it in your controller or smart home app first so its pairing is deleted there. Then reset the device.
What is lost when I reset it?
The device’s settings and assignments, including its connection to all Matter systems (multi-admin). You can set it up again afterwards.
The reset does not work – what now?
Check the manufacturer’s manual and support to see whether the procedure applies to your model. Check power and range; Thread devices need a reachable border router.
Manufacturer links
Update history (certified firmware versions)
4 certified versions, latest on October 17, 2026. New versions appear here automatically once they are listed in the certification database.
| Version | Certified on | Matter | Certificate ID | Download firmware |
|---|---|---|---|---|
| 1.3.00current | October 17, 2026 | 1.2 | CSA26561MAT56105-24 | Download firmware (514 KB)SHA-256: DxDIZwob0XzxPrJM7FGBqWUqh1wUr88cMHkUu/T8lws= |
| 1.2.00 | November 2, 2025 | 1.2 | CSA25D2AMAT48252-24 | Download firmware (514 KB)SHA-256: wtAD6gs537zXWJxZihYU4i8ncDBht9e42dxtGQuCpRc= |
| 1.1.00 | February 13, 2025 | 1.2 | CSA250E6MAT45112-24 | |
| 1.0.07First certification | September 13, 2024 | 1.2 | CSA24508MAT43963-24 |
The files are hosted by the manufacturer and only linked here (details and checksum from the CSA DCL). Matter devices usually update automatically through the manufacturer’s app; manual installation is only needed if the manufacturer provides for it. Use at your own risk.
Source: Distributed Compliance Ledger of the Connectivity Standards Alliance (as of November 3, 2026). No guarantee.