1、Made of high quality material, durable and long service life. 2、The pump switch is full automatic, it is simple and convenient without manual operation 3、When the system pipeline pressure reaches the upper limit, the power will be automatically cut off and the pump will stop working. 4、When the system pipeline pressure reaches the lower limit, the power is automatically turned on and the pump starts to work. 5、Suitable for automatic self-priming pumps, automatic boost pumps, universal pressure switches, etc. Features: 1. Made of high quality material, durable and long service life. 2. The pump switch is full automatic, it is simple and convenient without manual operation 3. When the system pipeline pressure reaches the upper limit, the power will be automatically cut off and the pump will stop working. 4. When the system pipeline pressure reaches the lower limit, the power is automatically turned on and the pump starts to work. 5. Suitable for automatic self-priming pumps, automatic boost pumps, universal pressure switches, etc. Specification: Condition: 100% Brand New Connector Thread: G1/4" Pressure Control Range: 1.0-1.8 kgf/cm2 On: 1.0kgf/cm2 Off: 1.8 kgf/cm2 Pressure Control Range: 1.5-2.2 kgf/cm2 On: 1.5kgf/cm2 Off: 2.2 kgf/cm2 Package List: 1 * Pressure Switch Note: 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.