Pressure switch products come standard with a diaphragm-sealed piston or piston actuator for long service life. The stainless steel body is epoxy sealed to protect the precision, snap-acting switch element from extremely harsh environments. An optional sealed switch element improves reliability in harsh or corrosive environments and provides superior contact protection in applications where equipment is washed down or is subject to frequent changes in temperature. humidity Sensors choices include brass or stainless steel, factory set or field adjustable and many standard process and electrical connections.