This one might be useless for majority of geeks, but anyway it seems quite interesting to me. This gadget is a must-have for everyone who’s got paranoia about their privacy. Chinavasion’s Auto Detective Pen is a pen that has built-in RF detector which detects a radius of 10 Meters and can precisely detect wireless signals of 900/1200/1300 and 2400 /2600/3000MHz. That means that you will always be sure that your conversations won’t be overheard.
How it’s working? The pen will give the color light automatically when it detects any kind of supported radio frequency signal. The light flash will be stronger when the detector is closer to suspicious transmitter. The sensitivity of detector could be reduced manually – this might help to find out exact source of the signal. So there will be no problem to find out any kind of spy bug!
A great bonus is a built-in currency detector – using it you can check if the money you were given are fake. RF Auto Detective Pen is operating using 3 LR-44 batteries (included) and costs only $15.80.
