Features Automatically activates the pump when pressure is below set threshold, ensuring constant water supply and preventing damage to the pump. Automatically shuts off the pump when pressure exceeds the set threshold, safeguarding against overpressure and reducing energy consumption. Adjustable upper and lower pressure limits provide flexibility to suit specific water system requirements, ensuring optimal performance. Equipped with two springs for convenient and adjustments, allowing for easy customization according to the desired pressure levels. Allows for easy adjustment of water pump pressure threshold, offering flexibility and control over the pump's . 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 Voltage: 220V AC Rated Current: 10A AC Maximum Working Pressure: 100000-500000 (Pa) Thread Size: ZG1/4 (Male Thread) Setting Pressure: 0.14-0.28Mpa Rated Isolation Voltage Ui: 380V Rated Condition Short Circuit Current: 1000A Package List: 1 x Pressure Control Switch Note: betweendiv>1. When installing this pressure controller, the connecting thread should be well ed and not leaking; otherwise, it may cause the motor to start and stop frequently and eventually burn out.between/div>betweendiv>2. The inlet and outlet must be fixed well to avoid damage to the wires.between/div>betweendiv>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.between/div> Package List 1 x Pressure Control Switch