Electronic Indicator - Starrett Electronic Indicator, 3900A / 3900MA

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Item #: 3900A-5 / 3900A-1 / 3900MA-5 / 3900MA-25 The 3900A Series Electronic Indicators have simple, powerful, easy-to-use functions, all at an attractive price. Converts inches / metric with the press of a button. Ships with flat back installed, and includes a lug-on-center back as an accessory. Available in inch/metric (3/8” stem, 4-48 screw thread) and metric/inch (8mm stem, M2.5 x 0.45 screw thread) The 3900A-5 features 1/2" (12.7mm) Range, .0005" (0.01mm) Resolution, and a 3/8" Stem Diameter with 4-48 screw thread. The 3900A-1 features a 1" (25.4mm) Range, .0005" (0.01mm) Resolution, and 3/8" Stem Diameter with 4-48 Screw Thread. The 3900MA-5 features a 1/2" (12.7 mm) range, 0.0005" (0.01 mm) resolution, and a 5/16" (8 mm) stem diameter with an M2.5 x 0.45 screw thread. The 3900MA-25 features a 1" (25.4 mm) range, 0.0005" (0.01 mm) resolution, and a 0.31" (8 mm) stem diameter with an M2.5 x 0.45 screw thread. English-Metric conversion Large, easy-to-read LCD Lug-on-center back + additional flat back 3/8" Stem Diameter 4-48 Screw Thread Dust Cap Plastic storage case with form fit foam insert Show more