Shelly Door/Window 2

The Shelly Door/Window 2 is a WiFi-connected contact sensor with additional features including tilt detection, temperature sensing, and brightness measurement. This versatile sensor monitors doors, windows, and cabinets while providing environmental data for comprehensive automation triggers. The compact magnetic design installs easily with adhesive or screws.

Beyond simple open/closed detection, the tilt sensor enables garage door position monitoring, and the lux sensor can trigger lighting based on ambient brightness. Temperature reporting adds climate awareness for window-based HVAC optimizations. The sensor communicates via WiFi, avoiding the need for a separate hub or bridge.

The Door/Window 2 works with Amazon Alexa and Google Home through Shelly Cloud, while Home Assistant users can integrate locally through Shelly's API or MQTT. The battery lasts up to two years depending on reporting frequency. The combination of multiple sensor types in one device makes it valuable for sophisticated automations that consider multiple environmental factors.