ITEM NAME:1-1/2" Dry Utility Vacuum Pressure Gauge Blk.Steel 1/8" Center Back -30HG/0PSI Product Description Description: Click on the image below to get zoomed view of the item SKU: PA158B-V00  |  1-1/2" Dry Utility Vacuum Pressure Gauge Blk.Steel 1/8" Center Back, -30HG/0PSI Dial Size:    1-1/2" 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 (painted black) Connection:    Copper Alloy Center Back Mount; 1/8" NPT (for 1-1/2" dial) Normal Ambient Temp.:    -4F to +140F (-20C to +60C) Included: 1 x  Gauge.Included: 1 x Gauge. Connection: Copper Alloy Center Back Mount; 1/8" NPT (for 1-1/2" dial). Bourdon Tube: Copper Alloy. Accuracy: +/- 4/3/4%. Window: Glass. If item is defective after 3 months, you can still send it back to us.