The max working current | Emitter<=10mA |
Receiver<=30mA | |
Signal transmission format | Multi-frequency impulse |
Signal output electric status | 8Vp-p |
Distance of signal transmission | >=3km |
Volume Regulate Function | Yes |
Earphone for noise environment | Yes |
Sensitive | induction distance less than 20 mm, strong anti-jamming ability |
Storage Temperature | -20 to 50C |
Operation Temperature | -10 to 40C |
Battery | DC 9V terrace battery |
Battery life time | >50hrs continuous use |