Shenzhen SEI Technology Co., Ltd.
SEI Presence and Light Sensor
Certified on May 27, 2026, updates are not expected yet
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 →
SEI Presence and Light Sensor by Shenzhen SEI Technology Co., Ltd.: certified Matter device (Occupancy sensor). Radio: Thread. Matter 1.4.
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 (Occupancy 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 *Device type usually supported
- 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
- Shenzhen SEI Technology Co., Ltd.
- Product type
- Sensors
- Device type
- Occupancy sensor
- Radio protocol
- Thread
- Matter version
- Matter 1.4
- Model number
- MOT129S
- First certified
- May 27, 2026
- Certificate ID
- CSA263B2MAT53694-24
- Vendor / product ID (VID/PID)
- 0x1282 / 0x0003 (4738 / 3)
Factory reset
General advice
- First remove the device in your smart home app (controller) so its pairing is deleted there.
- Reset the device as the manufacturer describes – often a reset button or a fixed sequence of power cycles. The exact sequence differs per device; use the manual.
- The device then starts in pairing mode. Set it up again with its QR code or setup code.
Resetting erases the device’s settings and assignments.
Manufacturer links
Update history (certified firmware versions)
One version is certified so far (since May 27, 2026). New versions appear here automatically.
| Version | Certified on | Matter | Certificate ID |
|---|---|---|---|
| 1.1.2.5 | May 27, 2026 | 1.4 | CSA263B2MAT53694-24 |
Source: Distributed Compliance Ledger of the Connectivity Standards Alliance (as of November 3, 2026). No guarantee.
