K4552 Digital Test Pressure Gauge Accuracy +/-0.10 Percent Gauge Case Material 300 Stainless Steel Nominal Dial Size 3 in Lens Material Polyester IP/NEMA Rating IP65 Hazardous Location Rating Divisions 1 and 2 Groups A to G Sensor Material 316 Stainless Steel Socket Material 316 Stainless Steel Sensor Type Silicone MEMS Process Connection Type NPT Display Units bar cm Hg ft wc in Hg kg/sq cm kPa mm Hg Mpa psi Process Connection Gender Male Battery Type (3) AAA Batteries