Working voltage: 1 9V cube battery
Sensor: Long-life photoelectric sensor
Detection Type: Smoke
Rated voltage: 2 * 1.5V AAA
Alarm current: ≤75mA
Static current: ≤10uA
Alarm volume: ≤80dB
Operating temperature range: -10 ℃ ~ + 50 ℃
Relative humidity: <95% RH
Size: φ77.5 * 53mm