Features: 1Build?in pressure transmitter, sensitive reactions, high?accuracy, good stability. 2Using single chip microcomputer processing chip, safe and intelligent control, easy to operate. 3Convenient to switch the water pump during the water shortage period and when water is being used. 4Water pump pressure switch, supports one?key setting of on/off limits, which is easy to use. 5Good water resistance, easy installation, widely used in shower boost pumps and water pumps. Condition: 100% Brand New Item Type: Water Pump Pressure Switch Material: Plastic Metal Color: Yellow Black Weight: Approx. 393g / 13.9oz Current: 10A Relay Capacity: AC 220V 10A Fluid Temperature: 80 Waterproof Rating: IP66 Working Pressure Range: 0-10 Bar, matching with all pumps Output Signal: Active power output, providing 220V water pump, directly starting the water pump below 1.5KW Long Service Life: Can be used continuously for more than 20 million times Socket Type: International three flat pin plug Plug Type: AU plug, suitable for Australia, etc. Size: Approx. 52x85x112mm / 2.0x3.3x4.4in Wires Connecting: 3 Wires White: Front Black: Negative Green and Yellow: Ground Installation: 1. If the pump does not have a check valve, a check valve must be installed before the pressure. In this case, the pump may often turn on/off. 2. When opening tap water, if you turn on/off the pump from time to time, please adjust the H valve to a larger valve. 3. If the pump keeps running in the stopped state, please lower the H valve. On the other hand, if the pump does not work, please raise the L valve. Package Included: 1 x Water Pump Pressure Switch 1 x English Manual