Features: 1. Radio transmission :circuit and coding technology to solve blocking problem. 2. Various temperature modes: can be adjusted for different scenes. 3. Wireless transmission of data signals:remote monitoring of mobile phones. 4. Ultra low power consumption :and long battery 5. Safe usage: With low voltage monitoring prompt function. Description: 1.Timely send online reports to the host. 2.Demolition design in the field of professional security. Specifications: Battery type: AAA x 2pcs Standby current: 26uA Alarm current: 120mA-130mA Battery : 2500 triggers (1 trigger per , 3 triggers per , 3 triggers per and 2 triggers) Standby time: 2 years Sensitive distance: 6 meters Viewing angle: 110 degrees Operating temperature: 0°C~40°C (32°F~104°F) Working humidity: 20%~85% Storage temperature: 0~60 (32°F~140°F) Product size: 68*68*30MM Color:white Package Included: Temperature and humidity (battery not include)*1 Manual *1 Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.