Fangrui Product Details 1. Supply Voltage: Supply Voltage: Dc/ac 12v Or 24v 2. Output Channels: 1/2/3/4 Channels Receivers Are Available 3. Capacity: Can Pair Up Transmitters Max. 500 Pcs 4. Relay Work Output Impulse 5. Net Weight: 80g 6. Application: Automatic Doors, Such As Residential Garage Doors/roller Shutters/swing Gates And Sliding Gates 7. Conditions:the Control Unit Of Automatic Device Must Have Connectors For Wall Switches And 12v/24v Power Supply. The Receiver Can Be Wired To The Most Available Garage Door Motors As Well As Most Driveway Gate Motors That Operate Under 12v Or 24v. It Is Simple To Install And Has A Large Receiving Range Of Up To 50 Meters From The Remote Control, Also This Receiver Is Capable Of Storing Up To 500 Remote Control Transmitters With A Rolling Code Technology. The Receiver Change The Transmitting Code Each Time It Is Used And With Up To 1.2 Billion Code Combinations. It Has To Of The Worlds Safest Unit Around For Your Security And Your Peace Of Mind! The Wireless Wall Mount (two Channel T