... 2.Frequency: 315MHz/433MHz 3.Distance:<80 2 Ch Radio Wireless Rf Receiver 433 CY-402PC CY-402PC ,the four- ... company,which ouputs Switching Quantity Signal for 4 relay and control the equipment to realize turn , turn over , switch ... lifting equipment, gateways, lifting devices, industrial control and security industry and other fields. The wireless receiving controller, with high security, storage ...