Mechanical Switch: Type - Pressure Switch; Operator Type - Diaphragm; Pressure Media - Air, Water, Hydraulic Fluid; Circuit - SPST; Contact Rating - 120/240V 1/0.5A; Operating Range - 8-13 psi; Line Pressure - 250 psi Max; Occasional Surge - 500 psi Max; Connection - 1/8" 27 NPT male; Additional Information - Cover Type: Glass reinforced polyester, Temperature: -40 Deg F to 250 Deg F; Manufacturer Series - 5000 Series