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Size

Diameter :125mm
Height :35mm

Sensitivity of SmokeⅡGrade
Emission DistanceOpen ≥ 120m
Emission Frequency433MHz 
Decibel > 85 dB 
Power Supply9V Battery 
Working Temperure-10℃~50℃
Interface Temperatrue of Air 10%-90%RH
Alarm Current≤ 40MA
Standby Current≤ 10uA

Smart Wireless Smoke Detector Fire Alarm Sensor.