Now this is genius! The GPS Mail Logger is a GPS tracking device that can be mailed in an envelope, tracking the exact location, speed and altitude of your envelope, from the time it leaves you to the time it reaches the destination. It is expensive but if you really need to track something then this is key, I wonder how it gets through materials, vehicles, and buildings to send the signal. I also wonder if it is legal when the document or package is sent on a plane and if you can get the signal, I am really curious of it s capabilities.

Price: $695

Link: Security