Features:
big decibel
High sensitivity
small and light
easy installation
convenient to carry
Specifications:
Static current: <=16uA
Emit current: 12<=15mA
Emit frequency: f=315+-0.MHz
Clutch distance: <15mm
Operating environment: temperature -10~-50C
Relative humidity: <=90%
Operating voltage: 12V
Operating current: <=16mA
Emit time: 15s~3s
Emit power: 10mW
Size: 38x15x72mm
Power supply: 3 x A23 DC 12V button cell batteries(not included)
Emit distance: barrier free distance >=50m