Review on Advanced RF Detector & Camera Finder: Anti Spy Hidden Camera Detectors, Bug Sweeper, GPS Audio Spy Scanner, CDMA Signal GSM Tracker, WiFi Bluetooth Device Scanner & Audio Bug RF Finder Device by Joe Michels

Okay, so this device doesn't work the way you think or even according to the instructions. Another reviewer said the device was overly sensitive, which is true. I actually bought the tracking device because I needed to make sure it worked. You need to turn the sensitivity level to the maximum so that the beep is constant, and then go back where there is still a constant but faint beep. You will notice that the beeping will stop as you get close to the tracker. Hey it works, but it's horrible that I had to figure out how this thing actually works. For this reason only three stars!