LandAirSea GPS Tracking Key Pro The GPS Tracking Key Pro is LandAirSea's newest GPS vehicle tracking device, a compact and portable passive GPS tracking unit that is only slightly larger than the two (2) AA batteries that give it power. It can operate up to 80 hours. Monitors a vehicle travels, with no monthly fees. Records the following every second within 2.5 meters' accuracy: Speed, Address of stops, Duration of stops, Time in route, Arrival addresses, Direction of vehicle. There are three data viewing options: a daily text log; route display over animated digital street map; or route display on satellite imagery with Google Earth interface. Unit comes equipped with a motion detector; it will go into a sleep mode after two minutes of non-movement.