Federal D-2500 Dimensionair Air Gage, Grad Value:  .00005", Magnification 2500:1

Note that this price is for one unit even though multiple are pictured.

• Dimensionair air gages (single master system) D-2500
• Range of analog display inches: ± .0015"
• Graduation value inches: .00005"
• Magnification: 2500:1
• Inputs for pneumatic measuring equipment: 1