1.Receiver module 2.rf wireless receiver module 3.Frequency:315/ ... resonator)Optional for encoding ICOptional for the outside colorTech Spec : 1, Operating Frequency : 315MHz/433.92MHz2, Operating Voltage : DC9V ( laminated battery ... : 0mA4, Modulation Mode : ASK5, Operating current :160-200mA6, Transmitting power : 1.5W7, Transmitting distance:3000m(open space , receiving sensibility : -108dBm)8 ...