HC-12 SI4463 wireless microcontroller serial 433 long-range 1000M with Antenna

HC-12 SI4463 wireless microcontroller serial  433 long-range 1000M with Antenna Description: HC-12 module has three serial pass-through mode, using FU1, FU2 and FU3 said. When used, the various models are just to send and receive serial data, wireless transmission portion of the air tube.