Step 4Tune in
iImage Information

The fence emits a radio signal that is picked up by a reciever on your dog's collar when it gets in range, causing a warning signal or an electric shock. You should be able to detect this signal in the lower AM range. The signal of my fence was roughly 600 kHz. When tuned to the right frequency, you will hear the signal as you pass the radio over the ground. It may be necessary to turn up the intensity of the signal at the tranmitter, although I didn't have to (there should be a numbered dial somewhere on the transmitter, just remember to turn it back down later so you don't fry fido!)
http://dogfencediy.com/store/accessories/petsafe-boundary-wire-locator.html
The correct website is www.invincibleservices.com not invisible
The locator in the video is exactly the same. You may only be seeing the antenna in the video but believe me they are exactly the same. If you watch at the end of the video you will see a demonstration of how to put it in the case and it is the exact same locator. Hope this clears it up.