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Originally Posted by Alpedhuez55
That was a pleasant suprise!!! They actually worked. And to think I would have bought one for $25 at Radioshack if the were in stock.
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I bought one of these a while back. out of the box it worked great. salt tested within2%. After a month every once in a while it would read 58% for 68%. I picked up a radio shack one and ran them side by side. The walmart one after 3 months wasn't staying constant, but the radio shack one is still dead on. I ended up throwing the walmart one out. maybe I just got a bad one, but just watch out
