Comes with a pressure gauge and can adjust the starting pressure. This automatic water pump control switch can transform a regular water pump into an automatic one (an automatic water pump is a pump that can be turned on and off according to user usage). This control switch comes with intelligent functions that can protect the pump from damage due to water shortage. It will automatically cut off the pump’s operation when it detects a lack of water in the system and can resume operation automatically when water is refilled into the system. The starting pressure can be adjusted between 1.5 bar to 3.0 bar, and it cuts off operation at 3.0 bar. The electrical system is single-phase 220 volts, 50 hertz. The water pipe connector size is 1 inch external thread.
