The products can be applied to lighting, garage door, roller shutter door, remote control curtain, DC motor, forward and reverse motor. There are many more About this item Universal Wireless Remote ControlFrom simple master remote control to autonomous control such as windows, entrances, garage doors, alarm systems, lifting devices, lights, rolling shutters High Sensitivity 433Mhz wireless remote control can go through walls, floors and doors at a reliable distance. The maximum signal range is up to 164ft/50m (without obstacles), and the receiver is suitable for DC 6V~30V voltage, so both DC12V and DC24V are available. It is more flexible to use. [Stable and Reliable] High reception sensitivity (> - 105dBm), 2 remote control switches with wireless coding technology, non-directional switching, no interference with each other. Can be used with the remote control to switch instantaneous / switch / hold three working modes [Intelligent Learning Mechanism] Learning code with low repetition rate and re-learning mode, high security, when the remote control is lost, you can erase the old code and re-learn the new code. For receiver module: Model: KR1204B-4 Operating voltage: DC 6-30V Product Type: 4-channel remote control switch RF working mode: ASK super-exception reception Modulation mode: ASK Operating mode: instantaneous / flip-flop / latch, etc. Matching mode: intelligent learning code. Quiescent current: 5mA RF frequency: 433MHz Output current: 10A Receiving sensitivity: >104dbm Wiring instructions: 1+Connect to the positive pole of 12V power supply 2-Connect to the negative pole of 12V power supply 3A: output; relay 4, B: output; relay common terminal; 5, C: output; normally closed relay