1. A must-have for working with door and window sensors and various smart products. 2. Real-time remote monitoring: Receive a smartphone notification anytime, anywhere if your door and window sensors detect an external object or animal. 3. Widely applicable: Use smart door and window sensors in a variety of scenarios, including your bedroom, garage, bathroom, garden, and anywhere else you like. 4. Double-sided adhesive tape for easy installation: Simply apply it anywhere you like to secure your home. 5. Prevent children from leaving your home without notice. Ideal entry warning for homes, offices, apartments, garages, and more. Description The door magnetic sensor detects whether and are open or closed, and reports to the phone. It can be associated with other intelligent devices to achieve intelligent application scenarios.The product is suitable for intelligent scenarios such as door and window sensing warnings, automatic door opening and lighting. Product parameter: Battery model: CR2032/3V Standby current: 10uA Working temperature: -10~45℃ Working humidity: 20%~85%RH Wireless frequency: 2.4GHz Wireless distance: 30 meters without obstruction Communication protocol: ZigBee3.0 Network protocol: ZigBee IEEE 802.15.4. Product size: 58 x 42 x 13.2mm. Note:The door&window sensor needs to be paired with a ZigBee gateway to work. Color: White Material: ABS Package Contents: 1 x wireless door magnetic alarm sensor 1 x Zigbee gateway Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.