This controller priced WITHOUT THE VALVE. Button 1 is a latching on/off function to open and close the valve. Button 2 is a optional momentary function which you can use for any momentary function you may need. This button with our optional ground relay kit can be used as an engine shut off function.
Unit is designed for air compressor air on / off control or water on / off control. For water control applications a simple sprinkler valve can be used.