Title: Work but hidden cost
Product review: After reading the instructions I discovered that for the warranty to be valid you must purchase their surge protector at a cost of $39.95 + S&H.;Communication with customer service was quick and the representatives were knowledgable on the products.The system works and keeps my 110 pound lab in the yard as advertized.I would recommend using some black electrical tape over the battery cover, on the first day the cover came off somewhere within the boundary so I lost the cover and battery at a replacement cost of approx $25. I was able to use a small copper washer with a peice of felt plug to make contact and black electrical tape to hold it together till the new one arrives.
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