Security experts and spy gadget buffs are aware that there are a myriad of choices of nifty hidden radio frequency detectors you can purchase on the market. The RF-Pen Detector looks like your typical fancy pen, but packs an RF signal detector to find tracking bugs, and even cell phones up to over 30 feet away.
If the LED light on the pen starts to flash it is detecting a signal which could be from wiretapping, a hidden camera, a cell phone, or any item that releases a radio frequency.
Whether you have a high level job, such as the CIA, or you are a private investigator who thinks someone is watching, the pen is a great tool to have. With its nice 30 foot range, if your pen LED goes off you can narrow down your search and find a hidden device by moving out of the area the pen alarms you is sending RF signals.
The RF-Pen is a unique detector of bugging devices that will most certainly fulfill your need for bugging detection.
(Update: This product has been discontinued. Browse this site for anti-surveillance equipment.)