Can anyone in the UK recommend an affordable Digital Caliper that's actually reliably accurate.

I need to measure string gauges on various guitars and my close up eyesight is too old and knackered
to distinguish 9s or 10s top E strings.

I bought one for a fiver from Lidls a long time ago and it was not to be trusted..
The batteries have probably corroded it to buggery by now.

Is it actually possible to get a truly good one [say off Amazon] for less than 10 or 20 quid.

Last time I looked into this, most suggested specific brands were well expensive, like over a hundred quid...


cheers...