Feature:1. This pumptrol water pressure switch automatically turns on the pump when the pressure is lower than the switch set threshold2. It will automatically turns off the pump when the pressure exceeds the set threshold.3. The upper and lower limits of the pump pressure switch can be adjusted within the adjustment range.4. There are two springs in the controller, which are convenient and accurate to adjust.5. The pressure threshold of water pump pressure switch can be adjusted by the well pump pressure switch.Specification:Item Type: Pressure Control SwitchMaterial: Ferroalloy + ABSSize: Approx. 10.5x10x7cm / 4.1x3.9x2.8in Purpose: Water Pump Mechanical Switch Pressure ControllerColor: GrayModel: JSK-2Rated Voltage: 220V ACRated Current: 10A ACMaximum Working Pressure: 100000-500000 (Pa)Thread Size: ZG1/4 (Male Thread)Setting Pressure: 0.14-0.28MpaRated Isolation Voltage Ui: 380VRated Condition Short Circuit Current: 1000A.Package List:1 x Pressure Control SwitchNote:1. When installing this pressure controller, the connecting thread should be well sealed and not leaking; otherwise, it may cause the motor to start and stop frequently and eventually burn out.2. The inlet and outlet must be fixed well to avoid damage to the wires.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.