from their press release...
Law Enforcement Associates Corporation, the largest U.S. developer and manufacturer of undercover surveillance equipment, today announced that year-to-date sales of the company's new Birddog(TM) GPS tracking system have surpassed 100 units and have contributed approximately $750,000 to fiscal 2007 revenue.
About the Birddog
The Birddog was originally released by AID in the 1970s as a radio frequency (RF)-enabled tracking system. The Birddog ultimately became the most widely used covert tracking device by local and federal law enforcement agencies. LEA re-launched the Birddog in January 2007, when the company introduced an all-new tracking device based on advanced GPS technology. (more)