This is a wireless remote control switch with feedback function, no configuration required, as long as the transceiver ''Frequency and ID'' settings are consistent, it can be controlled. With feedback function, the LED indicator on the transmitter will indicate the switch status of the receiver.Application: Smart Home; Home Automation; Identification system; Remote Motor Control System; CCTV Camera PTZ Control; Security system; LED dot matrix screen; Ship remote control system; Farm remote gate control systemNOTE: To install the antenna, remove the top cover of the housing.NOTE: When using two transmitting devices at the same time, the frequency or ID number cannot be the sameNOTE: When using two receiving devices at the same time, the frequency or ID number cannot be the sameTransmitter :1 Working voltage: DC 12V (8-30V)2 Working current: 12-30MA3 Input channels: 8 channels, low pulse trigger (NPN)4 Transmit power: 22dBm5 Working frequency band: 425~455MHz (can be set by DIP switch)6 The farthest transmission distance in the open field: 2 kilometersReceiver:1 Working voltage: DC 12V (11-15V)2 Working current: 12-260MA3 Output channels: 8 channels 10A relay output4 Working frequency band: 425~455MHz (can be set by DIP switch)6 The farthest transmission distance in the open field: 2 kilometers6 Working mode: Momentary(Jog),Self-locking,Interlock, Delay (can be set by DIP switch)7 Maximum load: 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDCThe first use process:1 Confirm that the frequency and ID of the receiver and transmitter are the same2 Power on the receiver first, the PWR light is on3 Power on the transmitter again, the PWR light flashes, and the PWR light on the receiver flashes at the same time, indi