1. WITH 1 WAY VALVE: The automatic water pump controller is a fully electronic smart water pump control unit that is equipped with a one way valve to prevent loss of pressure in the pipeline2. EASY INSTALLATION AND USE: The pressure switch can be directly installed on the water pump or the device can be placed directly on the first faucet of the water pump, and a safety valve is installed to prevent water from spraying out if the diaphragm is damaged3. HARD ABS MATERIAL: Made of good quality ABS material, the shell is hard, impact resistant and scratch resistant, durable and possess long service life4. AUTOMATIC START STOP: Turn on the faucet or valve to automatically start the water pump, close the faucet or valve to automatically stop the water pump, very flexible5. FOR WATER PUMPS: Suitable for most water pumps, as well as well pumps(submersible pumps) between