Calibration Services

We offer CTRS (Certified Traceable Registration Sticker) calibration traceable to NIST (National Institute of Standards and Technology) for most of our Hanhart digital and mechanical stopwatches.  The cost is $45.00 per stopwatch (+$9.00 shipping), please allow 1 week turnaround upon receipt.

Please mail your stopwatch to:

Stopwatches USA - Calibration Service
A Division of Eric Armin Inc.
118 Bauer Drive
Oakland, NJ 07436