4 Channel RF Transmitter and Receiver (HD4COMBO)
Our HD4COMBO consists of ONE HD4RX Receiver Board and ONE HD4TX Transmitter. This assembled four channel RF Remote Control Relay Board – HD4COMBO – is an improved version of our original CK1616 unit and is similar to our HD2RX but with 2 additional channels. It uses an auto roll algorithm which makes it almost impossible to steal the code for unauthorized use.
The HD4RX remote control relay board has 4 relays (channels) that are individually jumper select-able as either latching or momentary. Each channel has a reset connection, so you could use a limit switch to reset the relay if you desired. Each channel has led indicators. Each receiver board can support up to 6 transmitters. This unit makes remote control very affordable for you next project.