Wide ApplicationProducts can be used in homes, farms, factories, offices, laboratories, supermarkets and so on.You can remotely operate every device connect with the relay receiver through the remote control. such as, garage door, electric door, shutter door, expansion door and electric curtain, fan, Lamp, lighting, ventilation device, Signal transmission and so on.Great design433Mhz RF wireless remote control switch.Stable and reliable performance with high reception sensitivity (> 97dBm). Radio frequency signal transmission.Strong signal can pass walls, floors, doors,board and so on.It can be controlled within 30 meters distance with no obstacle. The code of the chip is EV1527 learning code which is the most popular technology that make the remote control system more security.More FlexibilityThis receiver contain 2 relays, and there are 3 terminals(normally open, common, normally closed) for each relay.This 2 relays are independent, so that you can remote control each of them independently by pressing the remote button. Each receiver can store about 20 transmitters. And One transmitter can control multiple receivers too( the transmitter need to match with receiver ).Easy to useExtremely easy to set up and reset. There are 3 operating mode(momentary/toggle/latched mode) can be chose. You can easily set up by yourself depends on your needs. The operating mode of the product is adjustable. This item has already been setup in toggle mode. Regardless of whether it is a DC motor or an AC motor, you can use this product for remote control easily. Wireless remote control switch forward/reverse.Quality AssuranceHigh-quality relay that can be used over 100,000 times.Let this product is more long-lasting and stable to use.This receiver adopts 10A relay, which can load high-power electrical appliances to ensure long-term stability control. The high-power terminal can withstand a current of 15A, so that this product can have a good effect even when the current is unstable. The receiver is suitable for DC 6V~30V voltage,so both DC12V and DC24V is OK. It is more flexible to use.