Lead-Free Vacuum Gauge Accuracy +/-3-2-3 Percent Gauge Case Material Steel Nominal Dial Size 2 1/2 in Lens Material Plastic IP/NEMA Rating IP52 Hazardous Location Rating Not Rated Compatible Process Media Non-Clogging Non-Corroding Potable Water Sensor Material Phosphor Bronze Socket Material Lead Free Brass Sensor Type Bourdon Tube Process Connection Type NPT Process Connection Gender Male Process Connection Location Bottom Process Connection Size 1/4 in Panel-Mountable No