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. This item has been restricted from sale in the following state (s): []