Descriptions The PH-SJH is designed to inform the user when the alarm host is alarming, and meanwhile to scare the intruder. Working voltage: DC12V Rechargeable standby battery: 7.4V 200mA Quiescent current: ≤10mA Siren volume: ＞100dB Working temperature: -10℃~ +70℃ Transmitting distance: Barrier free distance≥80m Specifications Power Requirements (V) DC12V1A,
