Pneumatic Vacuum Sensors are available in normally-closed (NCL) and normally open (NOP) versions. NCL sensors are open to pass air when the desired set point is achieved. NCL sensors close to block air when the desired set point is achieved. Both versions have integral 5/32 in (4 mm) tube connectors.
construction: aluminum housing, stainless steel spring and fasteners, nylon reinforced Nitrile diaphragm.
output: pneumatic, normally-closed