K4241 Digital Industrial Pressure Gauge Accuracy +/-1.00 Percent Gauge Case Material ABS Nominal Dial Size 2 1/2 in IP/NEMA Rating NEMA 4X Hazardous Location Rating Not Rated Compatible Process Media Brake Fluid Diesel Hydraulic Fluid Hydrogen Motor Oil Nitrogen and Air Salt Water Sea Water Waste Water Sensor Material Silicone Crystal Sensor Socket Material 304L Stainless Steel Sensor Type Diaphragm Process Connection Type NPT Display Units Bar Mpa psi