... system, such as door sensor, P.I.R detector, remote controller, gas sensor, smoke sensor, panic button, infrared baluster. ... ≤20MaAlarm Current: ≤400mAWireless Receiving Frequency: 315MHz±0.5MHzWireless Receiving Sensitivity: 315MHz±0.5MHzAnti-interference: 1V/m(frequency:20-1000 MHz ... 1 wireless door sensor , 1 mini wired siren 110dB/0.3m , 2 remote controllers , 1 power adapter , 1 user manualWeight: ...