I dont know about Wall Mart... but these max min things abound in many stores of all kinds. We get what looks nearly identical to the Radio Shack one at a place called Bil Tema... which is a kind of expanded car supply/parts store. If you buy 10 of these things and put them on the table you might be suprised to see a couple of them reading quite different then the rest... so they are not alllll that dependable. Might be a good idea to have a single super dependable unit of some sort or another to have as a reference for checking out cheapies that you sell further to customers. I have no idea what kind of expected life time there is on these things Cheers RicB So, where in Walmart does one go to find such a thing? And is there anyone there who would know what a "thermo-hygrometer" is? thanks les bartlett
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