The elegant, slim body (13.5 mm) installs easily on door and window frames. The two-piece design with a magnet reliably detects open/closed status without sticking out unnecessarily.
Monitor status in real time in the app and receive push notifications. The tamper function alerts you to any attempt to remove the sensor or manipulate it without authorization.
With Zigbee 3.0, the sensor can be used in automations—for example, start a camera when a door opens, turn on lights when you arrive, or switch off heating when a window is open. It supports integrations including eWeLink, Home Assistant, MQTT, iHost, and voice control via compatible systems (e.g., Amazon Alexa/Apple Home via a Matter Bridge).
Want to be sure that your door, window, or even a cabinet is securely closed? Sonoff SNZB-04PR2 reliably detects both opening and closing and immediately sends a notification to your phone. In the app you can see the current status, and thanks to the tamper (manipulation detection) function, the sensor will also alert you if someone tries to remove it.
It’s ideal for a smart home—supporting automations and scenarios for security and savings. When opened, it can trigger an alarm, camera, or turn on a light; and when a window is open, it can turn off heating/the thermostat. Thanks to the detachable magnet and the option to mount it horizontally or vertically, it easily adapts to different frame types.
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