DuraChoice Lower Mount Dry Utility Pressure Gauges are great for reading pressure in many mediums, including water, oil, gas (WOG) and diesel. Pressure ranges from vacuum to 6,000 PSI. The gauges feature a copper alloy lower mount connection, movement and bourdon tube. It is a steel case pressure gauge, allowing it to function admirably in harsh environments. Dial Size: 2" Dial Size (Crimped Casing) Accuracy: +/- 4/3/4% Scale: Dual Scale - PSI / Bar Movement: Copper Alloy Bourdon Tube: Copper Alloy Window: Glass Case: Steel case for protection in harsh environments Connection: Copper Alloy Lower Mount; 1/4" NPT (for 2" dial) Normal Ambient Temp.: -4F to +140F (-20C to +60C) Please Note: Brass components in this product contain lead, known to the State of California to cause cancer and birth defects or other reproductive harm. California law requires that this warning be given to consumers.