digital caliper "skipping"?

72Dart6pack said

I actually worked in the calibration business for years. It's actually a dirty reader. It's a copper bar inside. Clean it with a pencil eraser. Two set screws on the top. Back them off. Slide out the copper bar. Clean it. Bam. Problem fixed.

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I dont think this one has that capability. Its all sealed and no screws. Like ToolmanMike says, Ill just pitch it if it acts up again and does not come around. I maxed it to 158.4mm then closed it to 0.00 a few times and it hit both spot on even doing it pretty fast so it may have just been a glitch.