Marquis Electronic Automatic Water Pump Pressure Controller Water Pressure

 This electronic intelligent water pump automatic controller can start or stop the pump according to the detected data of water source state, water volume and pipeline pressure change.- The electric part and pipe are completely isolated for security.- It could automatically maintain a constant pressure in the pipeline as well as a constant water flow speed.- It Automatically powers on pump when open water valve and power off pump when close water valve or there is water shortage.- It can control various kinds of pumps, widely used in house, courtyard, garden, greenhouse, etc.- The wiring diagram inside the terminal block will show you how to make correct connection. Wrong connection will destroy the whole electronic circuit.- Cable used for connection must be a three-wired one with compulsory grounding end.