D0805 Vacuum Gauge Gauge Type Test Dial Size (In.) 4-1/2 Range 30 Hg Vac to 0 Connection Size 1/4 NPT Connection Location Lower Smallest Graduation (In. Hg) 0.5 Accuracy (%) +/-0.25 Case Material Aluminum Case Color Black Socket Material Brass Tube Material Bronze Lens Material Glass Ring Material Hinged Steel Operating Temp Range (F) -40 Degrees to 150 Degrees Calibration Certificate NIST With Data Series 1082 Manufacturers Warranty Length 1 year