... alarm detectors through wireless link, supports all kinds of wireless detectors, PIR, infrared balusters, smoke sensors, gas sensors, panic buttons and ... Power supply 1 pcWireless P.I.R. 1 pc Wireless Door detector 1 setRemote controller 2 pcsExternal siren 1 ... 3mA3. Alarm current: Ia<200mA4. Wireless frequency: 433.92 MHz 5. Wireless Modulation ASK 6. Wireless interference Rejection: >40dB(30-1000MHz) ...