This device is an Automatic Water Pump Pressure Controller (electronic press control switch) used to turn a water pump on and off automatically based on flow and pressure. [1] ( ), [2] ( )Key Technical SpecificationsVoltage: 220V–240V at 50/60HzMaximum Current: 10AMaximum Power: 1.1 kW (approx. 1.5 HP)Maximum Pressure: 1.0 MPa (10 bar)Maximum Water Temperature: 60°CProtection Rating: IP65 (protected against dust and water jets