Door/window sensors

Sonoff SNZB-04P Zigbee door and window opening sensor

By day the SNZB-04P flips on the hallway light as the door opens; with the flat empty it turns guard and pushes an instant alert — automations call for a Zigbee 3.0 coordinator.

Avatto ZDS16 Zigbee door & window contact sensor, CR2032

Stick the two halves on the door and frame: the moment the door or window opens, the ZDS16 sends a Zigbee alert to your phone.

Z-Wave Long Range contact sensor for doors and windows with open and tilt detection plus a light sensor, powered by one CR2032 battery for up to two years.

Shelly BLU Door/Window ZB Zigbee open-close sensor in brown. It hides in the frame and tracks open-closed, tilt and light level; a Shelly gateway is required.

A slim brown CR2032 sensor catches the open-close moment of a door or window, measures the sash tilt angle and illuminance, and runs up to 5 years on one battery.

Black Shelly BLU Door/Window ZB open sensor with simultaneous Zigbee 3.0 and Bluetooth 5 LE, tilt and light sensor, and a CR2032 battery that lasts up to 5 years.

Ultra-slim Bluetooth sensor that reports door or window open/close events, measures tilt angle and light level; CR2032 battery lasting up to 5 years.

White Shelly BLU Door/Window ZB open sensor with simultaneous Zigbee 3.0 and Bluetooth 5 LE, tilt and light sensor, and a CR2032 battery that lasts up to 5 years.