Reliable Zigbee window sensor for open/close surveillance The Zigbee window sensor reliably detects the opening and closing of doors or windows. Ideal as a window contact for smart home automations, status queries and everyday applications in the networked home. AAA Battery Operated - Durable & Low Maintenance Operated with standard AAA batteries for a long run time and stable performance. Easy to replace, cost-effective and ideal for permanent smart home use. Flexible mounting for various doors and windows. Supports horizontal and vertical magnetic mounting with up to 30 mm detection distance. Ideal for wide door gaps, narrow window frames as well as apartments, garage doors and office applications in the smart home. Smart Home Automations & Versatile Application Scenarios Requires a Zigbee Hub, compatible with Home Assistant, Alexa and SmartThings. Changes to open/close status can trigger automations, e.g. Turn on light, voice prompts, camera recording or scenes in home assistant. Ideal for windows, doors and balcony doors as well as for special applications such as window contact switches for cooker hood, heating control, automatic ventilation and energy saving. Sabotage detection for added security in the smart home Integrated sabotage detection detects removal or manipulation of the sensor and sends status changes to the smart home system – ideal for reliable monitoring and stable automation.