Description This Pressure Washer Pressure Gauge is used for pressure measurement on the high pressure washer equipment. It consists of stainless steel case, copper alloy bourdon tube and other brass wetted parts with glycerin filled. Specifications Dial size : 2-1/2" Process connection : 3/8" quick connection, socket and plugs IP class : IP67 Accuracy : +/-3-2-3% Range : 0-5000psi single scale Working temperature : -4 to 140 deg F/-20 to 60 deg C Ambient temperature : 140 deg F/60 deg C maximum