... module 1.original brand SIM20 module,SIM20 module,433MHz wireless module,433Mhz RF Transceiver Module, Low cost 433Mhz RF ... a high integrated half-duplex,multi-channel low power wireless communication module. It includes high speed MCU and ... ideal for industrial applications such as automatic metering,wireless medical telemetry service,home automation,process and building control. General Features ...