If you want engineering quality accuracy you need a micrometer and bore guages. I'd agree that vernier calipers are a great quick and easy measuring stick though.
You are ace!! I’ve got a bust one from China you can have? Think it was £11. Replaced with the same but price had gone up to about £14. Does exactly the same job.
I have a crappy eBay one aswell. It does everything I need it to, though the battery will drain itself unless I make a point of turning it off.
if you do find a Mitutoyo one, I can recommend the one with the adjustment wheel as opposed to without. It's a small thing, but the adjustment and use is much more refined.
A mitutoyo caliper for £30 is definitely fake. If you want quality at a bugdet I can recommend Shahe. They are Chinese but excellent quality.
And vernier callipers can double up as an adjustable spanner- handy! Micrometers? Hmmm, mini G-clamp I suppose When I was a lad, with a vernier calliper it was all about parallex error. Oh yes, those were the days The only thing I use verniers for these days is a quick check of shims when I’m doing alignments… Micrometers are boss…
I have a bigger one of theirs. I use it most days. It gets covered in cutting fluid at times as I use it when machining stuff. I can't fault it. In my opinion, it's as good as a premium brand. Accurate and reliable.