..WHat functions do these not have that I would need? Fluke 101 Handheld Easily Carried Digital Multimeter 600 V CAT III (these are circa £60 new)
For most purposes beginners need a meter that measures AC and DC volts up to, say 500 or 600V, resistance up to, say, 2 megaohms, and DC current up to 250mA, with a 10A range. AC current is nice to have but pushes the price up, and may not be used much.
That requirement makes the Fluke 101 an expensive mistake. If I read the spec right the 101 doesn’t measure current at all, so 0/10 in my book. It measures up to 40Mohms, capacity (farads) and frequency, all unlikely to help a beginner. Other Flukes do meet all basic requirements, but check the specs.
Throwing money at meters gets you some combination of improved robustness, accuracy, and resolution, and/or auto-ranging, auto-shutdown, higher CAT rating, AC current, wider ranges, and maybe inductance, capacity, diode, and transistor testing. If you don’t know yet why these are worth having, start with a basic instrument, set the range manually and remember to turn it off.
At this stage best avoid chasing ‘quality’ unless you have a specification. The cheap meter I pointed at does the basics, and, if it has limitations, understand them and then go upmarket as necessary. The ex-MOD meters recommended by Robert are excellent provided they are in good condition. Solidly made for a reason: servicemen bash them about, so secondhand is a risk…
Dave