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Title: Works great, but life span is too short.
Review: I purchased two of these switches over the years and both have failed after about 1.5 to 2 years of use. I called PSI after the first one failed and was told I got the useful life out of it, and that I'd have to purchase another one as they cannot repair them. I might add that the second unit has not seen alot of use since I purchased it in Aug. 2006.
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