1.The pump automatic controller is a full electronic intelligent water pump control equipment. It starts and stops the pump according to the detected water source status, pipeline water consumption, and pipeline pressure change data. 2.It can completely replace the traditional pressure tank, pressure switch, water shortage protection device, check valve, four-pass etc. system. 3.The complete isolation of the live parts from the pipeline and the high tightness of the control box allow the controller to have a safety that cannot be compared with conventional systems. The integrated design allows you to save more time and materials during installation. 4.It is suitable for the automation of home, unit supply, drainage system and garden irrigation and irrigation of greenhouse plants. Automatically maintain pressure in the pipeline. When the water valve is opened, the power of the water pump is automatically turned on, the water valve is turned off, or the water supply is automatically turned off when there is a shortage of water. Product model: -4 Rated voltage: 220V Frequency: 50 / 60Hz Maximum current: 10A Maximum power: 1.1KW Starting pressure setting: 1bar-1.5bar Working pressure: 10bar Connection thread: R1 inch Protection class: IP65 Maximum working temperature: 55 Wiring requirements: 7.5-9mm 1: Automatically turn the pump on and off according to the set pressure. 2: Pump water protection. 3: Applicable clean water source. size:195*93mm Material:metal colour:Black + Silver Package Contents: 1 * Water Pressure Booster Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.