DescriptionThe item is a DC 12V 2CH 433Mhz RF wireless relay light momentary switch transmitter with receiver. Mainly applied for of the on and off of pump, machine-tool, LED lights and other civil and industrial supporting remote areasReceiver- Input Voltage: DC 12V- Operating Frequency: 433Mhz- Operation Way: Inching, Self-locking, Interlocked- Coding Way: Intelligent Learning- Output Type: Passive Output- Max load: 10A- Ambient TEMP: -20 -65, Humidity<95%- Factory Default: Self-locking- Board DIM: 69x49x17mm- Case DIM: 75x65x29mmTransmitter- Operating Voltage: DC 12V- Operating Frequency: 433Mhz- Vibration Resistance: 126- Chip Type: 2260- Modulation: ASK (Stable, less interference)- Encode Type: Welding code- Battery Type: 12V 27A(not included)- Remote Distance: 20m (Theoretical value)- Ambient TEMP: -30 -70 , Humidity<95%- Product DIM: 50x39x12mmTwo modes- Inching: Press&hold one button, the reply turns on, release the button, the reply turns off.- Self-lock: Press the one button, the reply turns on, press the button again, the reply turns off.ClearPress&hold the program button on the receiver, the red light will turn on and stay on for about 5 seconds.Choose the mode- inching: Release the button after the light flashes three times.- Self-lock: Release the button after the light flashes twice.- Inter-lock: Release the button after the light flashes once.Link the remote controlPress the program button on the receiver until the red light turns on, and then release the program button, the red light will stay on.Press a transmitter button, and the red light will flash, at this time, it means finished linking.