ProSense® DGA series differential pressure gauges are used with air and compatible non-combustible gases to measure and display difference in pressure between two points. Applications include air/gas flow indication, filter monitoring, cabinet purging, and more. These gauges have an industrial grade black die-cast aluminum case with two high pressure and two low pressure connection ports (1/8" female NPT), and a 4-inch (100 mm) white aluminum dial with black pressure markings. Gauges are available for pressure ranges up to 150 inches water column (WC) and zero-center ranges from +/-1 to +/-15 inches WC with and 2% full scale accuracy. Gauges have a high temperature tolerance of -40°F to 140°F (-40°C to 60°C). Priced at $46.00, ProSense differential gauges are IP67 rated and have a 5-year warranty.