SONOFF SenseGuard DW Gen3 sensor runs Matter over Thread or Zigbee
SONOFF's SenseGuard DW Gen3 (SNZT-04P) is a battery door and window sensor that joins Apple Home over Matter on Thread, or works as a Zigbee sensor.
SONOFF has released the SenseGuard DW Gen3 (SNZT-04P), a battery-powered door and window sensor that works either as a Matter-over-Thread device or as a Zigbee 3.0 sensor. In Thread mode it joins Apple Home and other Matter platforms, which SONOFF lists as Google Home, Alexa, SmartThings and Home Assistant, without a SONOFF gateway. A Matter hub that acts as a Thread border router is required. Only one mode can be used at a time, and switching modes resets the sensor to factory settings.
The sensor runs on two standard AAA batteries, which SONOFF rates at up to 15 months. It detects open and closed states at up to 30 mm with the magnet mounted horizontally, or 15 mm vertically, and SONOFF lists a tamper alarm that alerts its app if the sensor is pulled off. In Thread mode, firmware updates arrive through Matter OTA. In Zigbee mode it can be updated via a SONOFF gateway, ZHA or Zigbee2MQTT, and SONOFF notes that SmartThings and ZHA currently need a script.
The SenseGuard DW Gen3 is sold through SONOFF's official online store, which serves EU countries. SONOFF hasn't given a separate European release date.