I like many others, I suspect, have discovered the little pocket testers from
Peak Electronic Design, based in Derbyshire. I use their LCR meter a lot as well as their component checker. Not the cheapest, but definitely very clever, and robust.
If anyone is thinking of buying, I saw on EEVBLOG that they currently have a 20% discount offer on all orders over £30. (Use the code EEVBLOG20 at checkout). Not sure how long this will last.
I have absolutely no links to Peak Electronics other than being a very satisfied customer. Their after-sales service is exemplary. Reasonably priced repairs and upgrades, and proper telephone support if you get stuck. Happy to recommend a good British company!