... 3:RF modules,wireless receiver 4:Working Voltage:DC5V 5:Dimensions: 43*30mm rf machine Radio frequency with 315 or ... 433.92MHz wireless rf receiver module 1). Wireless frequency: 315MHz/433.92MHz2). Modulation : ... 3G Alarm System, GSM Power Alarm, Video Monitoring system, Wireless Remote controller, RF Transmitter/Receiver module, Smoke/Gas/PIR Motion ...