Working voltage: 9V carbon battery or alkaline battery
Static current: ≤ 10uA
Alarm current: ≤ 35mA
Smoke sensitivity: Level II
Alarm sound: ＞ 80dB
Transmission frequency: 433MHz (315MHZ optional, contact for confirmation)
Launch distance: ≥ 100m (open distance)
Working temperature: - 10 ℃~50 ℃
Working humidity: 10% - 90% RH
Battery life: at least 1 year