Pressure Switch Dimensions W x H x D: 25.4 x 25.4 x 27 mm Operating temperature: +4...+65 °C Pressure measurement range: 5 mbar Operating voltage: max. 250 VAC Usable with: air, compatible liquids Electrical connection: Flat Plug 4.8 mm Housing Material: Polycarbonate (PC) Measurand: Gauge Pressure Output: Change-Over Contact (CO) Pressure connection: 0.25" Smooth No. of analogue outputs: 0 No. of digital outputs: 1 Overpressure resistance: 2 bar