Title: nasty piece of junk
Review: Worked OK for about a day and a half, then it would go off every few minutes for no reason. Changed batteries several times, to no avail. Changed position in case squirrels or cats triggered it. Moved it from place to place, even watched the scene, and still sounded the alarm for no reason. This is a piece of junk that will drive your dog crazy. !!! AVOID !!!
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