They're the ones to avoid. I wouldn't countenance a meter with an unfused 20 amp range. There's a video on the Web (Link from the Gossen site, IIRC) of a TÜV test on a DMM that'll make the point.
The Fluke 80 series (fused) alarms if you have a lead in either current socket with a voltage or resistance range selected. Not totally foolproof, but it's better than nothing.
Portugal.
-- "For a successful technology, reality must take precedence over public relations, for nature cannot be fooled." (Richard Feynman)
Do you mean advice on which DMM to buy, or advice on using a DMM?
Have a look at Dave Jones' EEVBLOG:
in particular the "$50 Multimeter shootout", and the "$100 Multimeter shootout, parts 1 & 2".
Agreed, but since he is looking for a cheap one it is likely that he will come across such a meter and I thought he should be warned.
Tom
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