Retrievor

The coin-sized Retriever is a solar powered GPS tracking device. The device is roughly the size of an American quarter and a centimeter thick. The tracker uses the smallest fully operational GPS module also having an antenna. It has a SiRFstarIV processor which allows it to work in areas a regular GPS could not. It is also water proof up to a depth of three metres and has a lithium ion battery. It also has the ability to have perimeters set that once it leaves the area, it sends out an email, text or phone call. It will cost $169 and a monthly subscription fee of $1.79. Click here for more information.