Working voltage: 9V carbon battery or alkaline battery (battery not included)
Quiet current: 10uA
Alarm current: 35mA
Smoke sensitivity: Level 2
Alarm sound: >80dB
Transmission frequency: 433MHz (optional 315MHZ, please contact for confirmation)
Transmitting distance: 100m (open distance)
Working temperature: -10~50
Working humidity: 10%-90%RH
