this one is 'just like' the one shown below
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Looks like the ebay price is about $10, I have one more of these - the remaining one has an original red 1.5V battery in it (which still has some life and is not leaking), and I've run similar tests on it - it has a metal handle rather than the leather one, and it has the DC probe connected via the 1/4 inch phone jack.
So, if anyone wants this for $10 plus the $13 shipping, drop me a note via the email address shown on my web site and I'll ship it to you, otherwise, I'll put it on ebay in a few days.