Power supply mode DC3V,1 CR123A battery
Working temperature -10℃~+55℃
Working humidity  ≤95%RH
Anti-tamper Support
Low voltage reminder Support
Communication method Zigbee 3.0
Housing material PC+ABS  
Key One, self check mute key
Indicator light One, red, green and yellow
Standby time 5 years
Detection range 50 square meters
Alarm sound pressure 85dB@3 meters
Installation method Ceiling mounted with 3M tape or screw
Dimension 70.5mm*70.5mm*29 mm
Other functions Regular self-test