Pressure switch, RT19W. Pressure switch, RT19W, 017-518166, Regulation range [bar] Pe: 5 - 25, Differential [bar]: 1.2, Contact function: SPDT, Reset function: Auto, Pressure connection type: G, Pressure connection size: 1/2, Pressure Male/Female: Male, Enclosure rating IP: IP66, Max. Working Pressure [bar]: 42