At Fluke, we're frequently asked how often our products should be calibrated. The answer varies, depending on your needs.
Periodic recalibration is certainly a good idea. It ensures that your electrical measurement tools meet their published specifications. Calibration at a Fluke Service Center also includes applicable updates and units are inspected for possible safety issues.
If your quality requirements (or your customer's quality requirements) require certified test tools, we suggest annual calibration. If certification isn't required, a longer calibration interval of two years or more is reasonable.
For information on Fluke calibration services, please contact one of our service centers (https://www.fluke.com/en-us/support/service-center-locations).