1. Dial Size: 1-1/2" Dial Size (Crimped Casing) 2. Accuracy: +/- 4/3/4% 3. Scale: Dual Scale - PSI / Bar 3. Movement: Copper Alloy 5. Bourdon Tube: Copper Alloy 6. Window: Glass 7. Case: Steel case for protection in harsh environments (painted black) 8. Connection: Copper Alloy Center Back Mount; 1/4" NPT (for 1-1/2" dial) 9. Normal Ambient Temp.: -4F to +140F (-20C to +60C) 11. Color: Black 12. Net Weight: 58g 100% Brand new and high quality Dry Utility Vacuum Pressure Gauge