How to solve the digital caliper jitter?

First, drip an appropriate amount of absolute ethanol on a clean soft cloth to wipe the digital caliper repeatedly. Generally, this method can restore the digital caliper. If it fails, proceed to the next step.

If the previous step fails, you can find a sunny place and place the digital caliper under the sun for about an hour, because the digital caliper is very unstable when it encounters a humid environment.

If the sun still does not work, it means that the circuit board in the caliper a may have been exposed to water. You can disassemble the caliper, wipe the circuit board clean with a soft cloth dipped in absolute ethanol, and then dry it with a hair dryer, and then restore to see if the number still jumps. Generally, most of the caliper numbers can be recovered after this step.

If none of the above methods work, you can try to use a degaussing device to degauss the caliper, because the caliper may be in contact with the object under test with magnetism during the use of the caliper, which will affect the circuit board of the caliper and may cause the digit to jump.

If it doesn't work, consider that the circuit board of the caliper is damaged. Generally, just replace a circuit board.