launch distance: 100m (open)
Power supply: 1 6F22 9V battery (not include)
Quiescent current: ≤ 10μA
Alarm current: ≤20mA
Alarm sound pressure: ≥ 85dB / m
Operating temperature: -10 ℃ ~ +50 ℃
Ambient humidity: ≤ 95% RH (no condensation)
Monitoring area: 20 square meters
Dimensions: 107 * 35mm
low battery reminder: every 40 seconds to send a short "beep" sound
