Features Input Voltage: DC 12V-24V The wireless RF signal can pass through walls, floors and doors. You can turn on/off the receiver with transmitter (remote control) from any place within a reliable distance; It is a learning code wireless remote control switch (receiver), the output way /working way can be changed as you like, it is easy to match the transmitter. Widely Used: Home appliances switch, lighting switch, wireless control products, switches, intelligent switches and other electronic equipment Specification Receiver Input Voltage DC 12V-24V Output Type Passive output (12V) Coding Way Intelligent Learning Standby Current ≤15mA Working Frequency 433Mhz Max.Loads ≤10A Receive Sensitivity ≥-105dBm Working Temperature -20℃- +70℃ / -4℉~158℉ Receiver Size Approx. 170x 86x 17.3mm/ 6.69x 3.39x 0.68inch Attention Mount case not included Transmitter Operating Voltage 12V Operating Frequency 433Mhz Vibration Resistance 4.7M Chip Type 2264 Modulation ASK (Stable, less interference) Encode Type Welding code Battery Type 12V 23A(Included) Remote Distance 500m (Theoretical value) Ambient TEMP -30℃ -70℃, Humidity<95% Product DIM 131.7x53x15.3mm Operating Mode JOG:Single relay will stay on only as long as corresponding remote key is pressed. Interlock: For each relay: press corresponding key for on (all others off). Self-locking: Press corresponding key for on, press same key again for off, each relay independently. Pairing & Clear Code Learning method: Press the "learn" button on the controller, buzzer beeping;then relase the learning button, Press the any one button down (about 2s) on the remote control (transmitter) which need to be learned; buzzer sound and stop after 8 beeps, indicating that the learning code was successful Clear code method: Press and hold the "learn" button and controller, the buzzer from beeping to not beeping, indicating that the clear code was successful Structure diagram Package 1 x Transmitter 1 x Receiver 1 x English Manual