Feature: 1. This water pump pressure switch automatically turns on the pump when the pressure drops below the set threshold and automatically turns off the pump when the pressure exceeds the set threshold. 2. With this automatic pump switch controller, your water pump will operate flexibly with high working efficiency. 3. The pressure range is 0.8–5.0 bar, and the pressure setting range is 1.4–2.8 bar, making adjustment very simple. 4. A wide pressure range and pressure setting range ensure stable operation under high pressure without leakage. 5. The entire pump control switch is made of zinc alloy and ABS materials, ensuring it is corrosion-resistant and highly durable. Specification: Item Type: Water Pump Pressure Control Switch Material: Zinc Alloy + ABS Function: Mechanical switch pressure controller. Model: JSK-5 Rated Current: 15A AC Maximum Working Pressure: 100000-500000 (Pa) Interface Thread: 1/4in male thread Pressure Range: 0.8-5.0bar Pressure Setting: 1.4-2.8bar. Package List: 1 x Water Pump Pressure Control Switch Note: 1. When installing this pressure controller, the connection thread must be well sealed to prevent leakage; otherwise, it may cause the motor to start and stop frequently, eventually burning out. 2. The inlet and outlet must be securely fixed to avoid damage to the wiring.