The error code E-05 on a Mitutoyo caliper typically indicates a problem related to the battery voltage being too low. This error suggests that the battery power has dropped below a level that can be considered reliable for accurate measurements. Mitutoyo calipers are designed to operate within a specific voltage range, and any deviation from this range can lead to errors, with E-05 being one of them.

Moisture trapped behind the display unit can create "electrical noise," leading to false error readings. Step-by-Step Troubleshooting and Fixes 1. The "Hard Reset" & Battery Swap Before taking anything apart, try a basic reset.

If Step 1 failed, perform a hard reset to clear the volatile memory.