PRESSURE SWITCH PEV-1/4-B-OD OPENS OR CLOSES AN ELECTRICAL CIRCUIT WHEN A CERTAIN PRESSURE VALUE IS REACHED. ADJUSTABLE PRESSURE SWITCHING POINT, ADJUSTABLE SWITCHING HYSTERESIS. WITHOUT CONNECTOR SOCKET. CONFORMS TO STANDARD=EN 60947-5-1, AUTHORISATION=CCC, CE MARK (SEE DECLARATION OF CONFORMITY)=TO EU DIRECTIVE LOW-VOLTAGE DEVICES, MATERIALS NOTE=CONFORMS TO ROHS, MEASURED VARIABLE=RELATIVE PRESSURE