500 Meters 4 Buttons Wireless Remote Control RF Transmitter (Model: 0021012) 15000 Feet Range Select the default option "Quick

Select the default option "Quick Pairing Mode" and click on "Next"

Press the button 8 again: The relay 8 is deactivated

6) Connect the positive pole of the DC pump to the receiver's terminal "COM"

Press the button B of the transmitter: The output terminals of the receiver stops outputting DC power

You also can control DC motor positive rotation

500 Meters 4 Buttons Wireless Remote Control RF Transmitter (Model: 0021012) 15000 Feet Range Select the default option "QuickApplication: This wireless RF transmitter is a long range remote control. It has long working distance, ultra high receiving sensitivity, superior anti interference ability, and smaller power consumption. It and the wireless RF receiver form a wireless control system. This system may be used in all types of industry automation, agriculture, home, factory, farm, vehicle, ship, offshore operations, etc. For example remote control lamp light, fan, motor,