Dwyer EDPS-04-1-N is a differential pressure switch designed for air and non-combustible gases. It has a temperature range of -4 to 185°F (-20 to 85°C) and an enclosure rating of NEMA 3 (IP54). With push-on screw terminals, M20x1.5 connection and NPT option, it offers flexible electrical connections. Its wetted materials are silicone, POM, PA 6.6, and polystyrene. It has a maximum operating pressure of 40" w.c. (10 kPa) and utilizes single-pole double-throw (SPDT) switch type. With an impressive mechanical working life of over 106 switching operations, it's a reliable choice.