Wireless outdoor siren KS-70B with 1.2A rechargeable battery.<br> <br>It adopts 8-digit single chip process. The user can choose the code by self that achieve multi-siren in the same code. It has enforce sound and light alarm function. The device equips with tamper and removes protected features. It is convenient and reliable.<br>Specifications:<br>Input Voltage: AC220V +/-15% 50Hz Backup battery: 12V DC 700mAh<br>Standby current: ≤10mA Alarm volume: ≥ 100dB<br>Working distance: ≥ 500m (in open area) Power consumption: ≤5W<br>Emit Frequency : 315MHz/433.92MHz Weight: 970g<br>Dimension: 235 X 160 X 70mm Alarm duration: 60s~600s
