Ashcroft 452074SD02L300BL Digital Pressure Gauge, 0 to 300 psi, 1 4 in MNPT, Plastic, Black 4WM46 Scale Graduations 0 Scale Graduations 0 Oxide Inhibiting Electrical Joint Compound 400 psi Backlit Screen Yes Adjustable Set Points No Process Connection Location Bottom Primary Display Range 0 to 300 Sensor Material Stainless Steel IP NEMA Rating IP65 Primary Units psi Lens Material Polyester Pressure Range Type Pressure Process Connection Type NPT Power Source Battery Includes Batteries Yes Blowout Safety Back No Weatherproof Yes Data Update Frequency 100 msec 37 in Dia Bolt Circle Primary Range 0 to 300 Gauge Wetted Parts Stainless Steel Gauge Mounting Type Stem Mount