ebay has them for ~5 dollars I bought one to see how it works, I've heard good things, just make sure you buy one that comes with calibration fluid.
I bought one a month ago (those yellow pen like thingy) but it already got busted! It even gave me an heart attack once (gave a reading of 6.7 at night!!!) :O
10-06-2012, 12:03 AM
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