Title: Manufacturer Quality Problem
Review: I bought one of these about 6 years ago and it worked just great. A month ago I purchased a second one, and it arrived defective. It keep going off every 3 to 8 seconds. I returned it to Amazon and ordered another unit. It also arrived with the same defective symptoms. With 2 units behaving the same way, it appears that the manufacturer no longer tests the units before they are shipped. I am glad that Amazon takes these units back with no hassles.
Is this product review negative?