RF detectors are simply a radio frequency receiving device. It is designed to detect wireless signals that are being transmitted within a certain frequency range.
A wireless hidden camera is designed to transmit video to a video receiver and some wireless transmitters are designed to transmit as far as 3 miles away while others can only be received one room away. So the stronger the signal being transmitted the easier it is for the bug detector to detect it. Some micro spy cameras are designed to output a very low signal making them very hard to detect.
You may need to scan in very close range to the camera or bug to detect it. They are designed this way not to be easily detected. The problem is if the detector is too sensitive it gives a false alarm. If it is not sensitive enough it does not detect the signal well enough. This is what separates this bug detector from some of the others you see. It has a built in sensitivity adjustment allowing you to detect those not so easy to detect wireless bug transmitters. While some covert spy cams are very difficult to detect, you can sweep the suspect area with this unit and then gradually increase the sensitivity until you eventually home in on the target.
It has a silent vibrate mode as well so you can use it without it sounding an audible alarm so you can operate in complete secrecy inside your pocket. It also has an earphone jack so if you choose you can use the included earphones while making your sweep.
For more product details, please click the following link or paste to your web Browser.
http://www.ezspycam.com/
Use this device to secure your Home, Office, Hotel Room or any other Public place you demand privacy. Locate Hidden Cameras and Audio Bugs. Use it to find WIFI Hot Spots. Use it to identify LIVE Cell Phones that may be transmitting Private Conversations. Use it to see wireless signals that are otherwise invisible!

