DuWayne said "Pet Safe units have a boundary area of aprox 3 feet where the dog gets a audible beep from the collar. If they go beyond that area they get the shock, for maximum 30 minutes, until they get back into the safe area. Have a neighbour using one and his dog will not leave the safe area no matter the enticement to do so. I have bought the same system online and will be installing this weekend. Adjusted properly the prongs on the collar do not irritate the dog. "
I agree, the quality of product has always worked for us. We get "Houdini dogs" that love to just follow their nose. I am always afraid they are gonna get run over or treated poorly by someone they meet up with. Once we got a wired fence, and trained our dog...she never escaped again. She got zapped once and learned right away. Better than a visit to the vet after being run over in my mind. Fast forward about 6 yrs, had to replace transmitter unit because ours finally gave out. I got a hold of pet safe and they informed me that virtually all of their transmitters work with all their collars. Everything is on the same frequency. Very convenient. Just replaced the transmitter not entire system. Hooked it all up and new dog is learning it now.