Dwyer SG3-B10321N is a 1.5" Industrial Pressure Gauge suitable for use with compatible gases and liquids. It has an accuracy of 2.5% FS and a temperature range of -4 to 140°F (-20 to 60°C). The enclosure housing is made of 304 SS and the wetted materials are 316 L SS tube and 316 SS connector. It has a pressure limit equal to the FS range and a 1/8" male NPT process connection. The gauge features a polycarbonate lens and measures 1.5" (40 mm) in diameter.