Dwyer 1910-20 is a compact low differential pressure switch suitable for air and non-combustible gases. With a temperature range of -30°F to 180°F (-34°C to 82.2°C) and a pressure limit of 45" w.c. (11.2 kPa) continuous, this switch offers reliable performance. It features a single-pole double-throw (SPDT) switch type, with an electrical rating of 15 A @ 120-480 VAC, 60 Hz. The set point adjustment is conveniently located inside the conduit enclosure. The switch has a diaphragm in a vertical position mounting orientation, but other positions can be consulted with the factory.