a manufacturer of alarm mainframe, provide the best quality and the lowest price, welcome to inquiry Power supply,AC 220V DC 9V Static Current,≤50mA Alarm Current,≤300mA Wireless Receiving Frequency,315/433/868±0.5MHz Wireless Receiving Sensitivity,5mV/ m Outer Alarm Siren Volume,110dB Working Condition,Temperature-10°C~40°C Humidity,≤90% Capacity for Wireless Device,28pcsSimple & practical auto- ...
