Quadro Tracker : is a device
manufactured by the Quadro Corp. of Harleyville in South Carolina.
It's function is to detect a number of items ranging from illicit drugs to
golf balls. The device itself is made out of plastic, is
non-electric and has a radio antenna which is used as a detector of
weapons, explosives and narcotics. It has been reported that the
Quadro has sold around a 1000 trackers to school districts and law
enforcement agencies nationwide at prices anywhere up to $8000
According one report the marketing literature explains that, the
tracker's user simply inserts a "locator card" in the device to
find drugs, weapons and even specific people. It would appear from
certain reports on the internet that there is some controversy surrounding
this device and it's ability to live up to its claims.