>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 06 September 2005 20:47
>To: Microcontroller discussion list - Public.
>Subject: [EE] Tiny multimeter
>
>
>I'm looking for a truly credit card sized multimeter.
>
>It doesn't need to be terribly advanced, just something
>that will fit in my wallet (I do have an inordinately fat 
>wallet, in all ways but the one that counts) and can be used 
>to give me an idea of whether the voltage at a node is 5, 50, 
>or 100 volts.
>
>I'll accept accuracy as poor as, say, 5-10%.  I'd like
>DC and AC volts and continuity; anything else is gravy
>and likely to just add to the size of the device.
>Obviously, this isn't something that'll be doing precision 
>work, just something so that when away from my desk I can 
>answer the basic question of "Is it getting enough power?" 
>with relative certainty, without having to carry yet another 
>big object around with me.
>
>For further reference, "credit card sized" denotes about 
>80x55mm or so, and not more that 7 or 8 mm thick. Leads should 
>not add significantly to the size, or should be easily replaced.

Doesn't quite meet your size specs, but is a full autoranging DMM

http://www.web-tronics.com/mulcredcarsi.html

Regards

Mike

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