DC12V Wireless Relay Remote Control Switch 4 Channel Remote Controller for Industry

How to Use: After pressing the learning button, the red indicator light flashes to indicate that it is in the learning state. Press any key on the remote control to transmit a signal, and the indicator light flashes twice until the light is off, indicating that the learning is su Specification: Item Type: Wireless Relay Remote Control Switch Working Voltage: c Working Current: ?6mA Working Frequency: 433.92MHZ Working Temperature: -40?~+80? Receive Sensitivity: -105dB Output Current: ?10A Battery: 2 x 3V CR2016 button battery, delivered without battery.  Package List: 1 x Remote Control 1 x Relay Note: To switch the working mode, you need to disconnect the power first for normal working.