Sonoff Zigbee door and window sensor SenseGuard DW Gen 2 (SNZB-04PR2)

The Sonoff SenseGuard DW Gen2 is a second-generation Zigbee door and window sensor designed for reliable and fast status monitoring. It provides instant detection of changes in open/closed status, making it an essential component for smart security systems, alarms, and energy-efficient automations. It can be used to trigger actions such as controlling heating, lighting, or camera activation when a door or window is opened.

As part of the improved SenseGuard series, the sensor offers a stable connection, accurate detection, and low power consumption, allowing it to operate for up to three years on two AAA batteries. The device features tamper protection, which sends an immediate alert if there is an attempt to remove or tamper with the sensor. Its compact design and adhesive mounting allow for quick and easy installation on doors, windows, cabinets, and other openable surfaces.

Utilizing Zigbee 3.0 connectivity, it connects to compatible hubs to provide real-time notifications and automation triggers. The sensor is compatible with the eWeLink app, Alexa, Google Home, and third-party systems like Home Assistant through ZHA or Zigbee2MQTT.