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Review title: A great product!
Product review: I first purcashed and intstalled a cheaper fence system. The control was very bad. It was shocking my dog inside our house on the lowest setting. So, returned it and got the Petsafe SDF-100. What a great system. The boundry control is great. It warns the dog with a beep and vibration. My dog has done great with this new system after only a couple of days. Do not mess with cheaper systems and no need to pay more, this sytem works great.Update 7/24/12 - Fence worked great for several years, then it was hit by lightning. It worked so well we purchased the same unit it again. We have a black lab mix, and he never leaves the yard. Great product!
