[davidhammock200]

GB Electrical GDT-11 Digital Multimeter

These are inexpensive, from a "known-good" manufacturer & universally available in the US.

Walmart stocks them for just under $15.

$12.68 online: http://acmehardware.com/pd-5751052-G...er-Tester.aspx

GB: http://www.gardnerbender.com/

GB Catolog PDF: http://www.gardnerbender.com/Product...GB_TESTERS.pdf
It is on page 14.

More info & places to shop: http://www.google.com/search?hl=en&l...11&btnG=Search

9V battery required & not included. The case color varies, the ones at Walmart are usually black.

If you don't already have one, this is a good one to get.
Dave