Starrett 3900-5 Electronic Indicator
Starrett 3900-5 Electronic Indicator
3900 Electronic Digital Indicators
Digital Indicator, .500"/12.5mm Range, .001"/0.01mm Res., 3/8" Stem Diameter
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DESCRIPTION
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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FEATURES
• 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
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SPECS
• Range (in): .500"
• Resolution (in): .0005"
• SPC Output: No
• Stem Diameter (in): 3/8"
• Accuracy (in): .001
Catalog Number: 72538
EDP Number: 049659725384
FREE SHIPPING, Liftgate service available
Couldn't load pickup availability
FREE SHIPPING
FREE SHIPPING
Processing: 5–8 business days to verify, allocate, and book the carrier.
Transit (U.S.): Free shipping; typical delivery 8–12 business days after dispatch.
Freight (LTL): Free professional unloading included. Carrier may call to schedule a delivery window—please provide a reachable phone number.
Tracking: Sent by email once dispatched (events can take up to 24h to appear).
On delivery: Inspect packaging before signing; note visible damage on the receipt and take photos. Report issues within 5 business days.
RETURNS & REFUNDS
RETURNS & REFUNDS
Easy returns: 30-day free return (U.S.) for items in original condition/packaging.
Start a return: Email Support@forestlyequipments.com for an RMA and prepaid label. Unauthorized returns may be refused.
Packing: Use original packaging; secure freight items to a pallet. Drain fuels and let vent 24h before transport (if applicable).
Refund timing: Issued to the original payment method within 5 business days after the return is received & inspected (bank times may vary).
Non-returnable: Used/installed/modified items, missing parts/packaging, opened consumables (unless DOA), items returned with fuel.
WARRANTY
WARRANTY
- Coverage: Limited warranty for 2 years against defects in materials & workmanship under normal use.
What we do: At our discretion we’ll repair, supply parts, replace, or credit the item.
Exclusions: Normal wear items (e.g., blades, belts, oils), damage from misuse, alterations, or improper setup.
How to claim: Email Support@forestlyequipments.com with order #, description, and photos/video. We’ll guide next steps (parts-in-field, service, or replacement).
Docs: Keep original packaging & manuals for easier service.

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Great Value
Affordable Prices Guaranteed
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Huge Stock Levels
Faster Delivery
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FREE Fast Shipping
FREE Delivery in the Continental 48 States
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How Can we Help?
Support@forestly
equipments.com