BTW, since the Vichy/Victor/Whatever 4070L was the topic of some discussion, I thought I would do a mini-teardown and review on it.
(Edit to add for archival/search purposes: it is actually made by HoldPeak in China:
http://www.holdpeak.com/0/Productshow.aspx?id=20063 (Thanks to bored@work for the link :-)
As noted above, accuracy is not its strong suit (mine reads about 10% high on average), but its the cheapest (+/- $25) way to measure inductance and stretch your available ohms and capacitance bandwidth beyond what your typical DMM will do. As I had a pressing need to measure inductance and was about broke at that point, I gambled and gave it a shot. It turns out to be quite useful, but hardly a definitive example of type.
BTW, of note up front is that it is totally unfused and clearly marked on the front as "MAX 30v DC" on all inputs. After poking around inside, you had better believe that I have taken those limitations to heart. This meter is somewhere between a CAT-0-rating and a small hand grenade for use at anything much higher.
The rubberish/soft plastic armor peels off with some difficulty. Its so stiff and thin that it can hardly provide any shock resistance at all.
Two screws (including the threaded insert battery cover screw) and you are in. Eight more little screws and you have the main board out. Not much to it. The display is interesting in that the LCD is mounted in the front cover with two long flexible connectors at the top and bottom hooking it electrically to the main board.
Sandwiched in between is a remarkably simple and effective (and cheap) way of backlighting the LCD: a thin translucent layer of plastic to conduct light from a single white LED mounted to the side. My Extechs should have half as good a backlight, and better than most anything else this side of, what? Agilent? Fluke? Not sure even they work much better. Kudos for shipping a cheap meter with a good backlight.
It has three tiny trimpots on the board. Perhaps it could be more precisely calibrated on the ohms and capacitance ranges, at least within the limits of my Hameg bench DMMs, but as this is the only inductance meter I have , I cant do much with that measurement. Might try that later.
It apparently has some means of testing transistors built into the face as well, but I didn't test that, as I gather such things are typically about useless anyway.
Photos below. I hope this is of some use to anybody.