1、SINGLE WAY VALVE: The automatic water pump controller is an electronic intelligent water pump control device equipped with a single way valve to prevent pipeline pressure loss. 2、APPLICABLE RANGE: The starting pressure of the controller is 2.5bar‑4.0bar, suitable for 1‑12 floors height, within 40 meters vertically, and the lift needs to exceed 30 meters for use. 3、APPLICABLE PUMP: Suitable for high pressure jet pump, deep well pump, self priming pump, pipeline pump, household intelligent pump, shielded circulation pump, centrifugal pump, etc. 4、STANDARD SIZE: The automatic pump pressure switch can be directly installed on the water pump, with standard G1in male thread interface to ensure tight connection and no leakage. 5、SAFE OPERATION: When the water pump is short of water or gets stuck by foreign objects, this device automatically stops the water pump to prevent damage caused by idling. 6、MULTIPLE FUNCTIONS: With check and constant pressure function, pressure tank buffering function, delay protection function, and water shortage protection function (non burning motor). Item Type: Pressure Switch Material: ABS Starting Pressure: 2.5bar-4.0bar Applicable Floor Height: 1-12 Floors (within 40 meters vertically, the lift needs to exceed 30 meters to be used) Maximum Current: 23A Maximum Pressure: 10bar Electronic Pressure Switch: 145PSI Rated Voltage: 220V-240V Frequency: 50Hz Maximum Temperature: 100℃ Protection Level: IP65 Interface Thread: G1 Inch (32MM) Male Thread Maximum Power: 1.5kw Product Use: Intelligent control of water pressurization for the whole family Tap water, water heater, solar water supply control Refrigeration system, air conditioning system, horticultural irrigation system Small industrial water supply system 1 x Pressure Switch