3900-5 Electronic Indicator 72538

3900 Electronic Digital Indicators
Digital Indicator, .500"/12.5mm Range, .001"/0.01mm Res., 3/8" Stem Diameter

The 3900 Series Electronic Indicators have simple, powerful, easy-to-use functions, all at an attractive price. The 3900-5 has a .500" (12.5mm) range, .0005" (0.01mm) resolution and 3/8" stem diameter and a #4-48 spindle thread. Converts inches / metric with the press of a button. Ships with flat back installed, and includes a lug-on-center back as an accessory, along with a plastic storage case.

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  • Long battery life
  • Simple, powerful, easy-to-use functions, all at an attractive price
  • Plastic storage case with clear cover
  • Plastic storage case with clear cover
  • Large, easy-to-read LCD
  • Lug-on-center back + additional flat back
  • Zero setting at any position
  • Power On / Off button
  • Reverse travel (+/- control indicates direction)
  • 3/8" diameter stem
  • 4-48 spindle thread
  • Uses single SR44 battery


  • Made in America: No
  • Range (in): .500"
  • Range (mm): 12mm
  • Resolution (in): .0005"
  • Resolution (mm): 0.01mm
  • SPC Output: No
  • Stem Diameter (in): .375"
  • Accuracy (in): .001


  • 25R (50153)
    25R Contact Point Set
  • 657D (52749)
    657D Magnetic Indicator Holder - Magnetic Base, Upright Post Assembly Including Post, Swivel Post Snug and Gage Holding Rod
  • 3673 (69903)
    3673 Indicator Stand with Square Anvil, 3/8" Stem Hole, 8mm Bushing


    3900 Electronic Indicator User Manual (pkg08787 - um3900)

    User manual for the 3900 series indicators



    Catalog 33 - Section 5 - Dial and Electronic Indicators and Gages

    We offer a variety of each of the major classes: mechanical dial, electronic display, lever style test and back plunger. Indicator requirements are very specific and Starrett offers everything you need: a broad line of each indicator type, an extensive range of accessories to configure and position the gage, and as needed, an indicator-based, custom engineered solution.

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