Features 1、This pumptrol water pressure switch automatically turns on the pump when the pressure is lower than the switch set threshold 2、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 Switch Material: Ferroalloy + ABS Size: Approx. 10.5x10x7cm / 4.1x3.9x2.8in Purpose: Water Pump Mechanical Switch Pressure Controller Color: Gray Model: JSK-2 Rated Current: 10A AC Maximum Working Pressure: 100000-500000 (Pa) Thread Size: ZG1/4 (Male Thread) Setting Pressure: 0.14-0.28Mpa Rated Condition Short Circuit Current: 1000A Package List 1 x Pressure Control Switch