The Pro300 Wire and Valve Locator sets up and works just like the larger commercial Pro700 and Pro800D models. Simply place the included ground stake directly into the earth and attach one alligator clip to it. Then, attached the other alligator clip the wire you want to track. Next, follow the path of the null beeps to track the wire. Should a wire be cut or broken, the signal will stop there. Lost solenoids are also easy to find with our residential valve locator, as the signal will change over the solenoid, indicating its location.