Specifications: Dial Size: 2" 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 Normal Ambient Temp.: -4F to +140F (-20C to +60C) Net weight: 69.5g Features: 100% brand new and high quality 1/4" NPT (for 2" dial) Vacuum Pressure Gauge Lower Mount Model: TS50-1+1