3 Review(s)

This receiver contains 4 relays and there are 3 terminals (normally open, common, normally closed) for each relay. These 4 relays are independent, so you can control each of them independently. Each receiver can store about 20 transmitters. And one transmitter can control multiple receivers. For example, you can use two relays to control the station door and the other two to control the lights.,? Easy to Use? Extremely easy to set up and reset.