Specification: Certification: CE Origin: Mainland China Smart home platform: Tuya Model Number: Window Door Sensor Model: NAS-DS07B Color: White Battery: CR123A 3V (not included) USB power supply: 5V/1A Standby current: 10.7uA Detection temperature: - 10 ° C - 80 ° Detection humidity: 0%-100% Wireless frequency: 2.4GHz Network range: 40M Wireless protocol: Zigbee 3.0 IEEE 802.11 Size: Main body: 82x27x23mm/3.23x1.06x0.91in Sub body: 50x13x16mm/1.97x0.51x0.63in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 X Door Sensor 1 X Data Cable 1 X Instruction 1 X Sticker Screw Pack 1 X Box 1. Control: Remotely controlled by Tuya APP, USB power supply 2. Monitor the status of doors and windows: When the door is open or closed, push the notification to the mobile phone 3. Anti disassembly function: When using external force to disassemble, the alarm will be pushed and notified to the mobile phone 4. Detection environment: Detection temperature is - 10 ° C - 80 ° C, detection humidity is 0% - 100%