Feature 1Control Switch: This air pump switch can better control the on and off in accordance to the pressure of your machine, safe and reliable. 2Efficient Works: The adjustment range is -50cm Hg to 1.0Mpa, the output pressure is 0.1-0.3Mpa, and the maximum work pressure is 1.65Mpa. 3Practical Using: Suitable for pressure control of boilers, ships, refrigeration equipment, medicine equipment, welding machines and so on. 4Great Materials: Consisting of phosphor copper corrugated pipe and brass pressure joint, the controller is very stable under high pressure. 5Easy to Install: Light in weight and compact in size as well, the air pump pressure switch is very convenient to install within minutes.Item Type: Air Pump SwitchModel: SNS-110Adjustment Range: -50cm Hg to 1.0MpaOutput Pressure: 0.1-0.3MpaSet Value: Off(On): 0.4MpaOn(Off): 0.6MpaMaximum Working Pressure: 1.65MpaMaximum Pressure: 10kgf/cm .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Air Pump Switch4 x Screw1 x Accessory1 x User Manual