5 GPS / LBS trackers. These 5 are basicly the cheapest mini real time trackers on ebay when I purchased them but I see a couple of new ones now like the A9, the next model up from the A8. The names of the trackers is not always clear so I have used the name I came across the most.
GPS
The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites
LBS
Location-based services (LBS) are a general class of computer program-level services used to include specific controls for location and time data as control features in computer programs. As such LBS is an information service and has a number of uses in social networking today as an entertainment service, which is accessible with mobile devices through the mobile network and which uses information on the geographical position of the mobile device.
1 TK102
2 A8
3 Accurate (H02) or (GT02) or (TK110)
4 TK101 (no name junk)
5 H007 (H07)
All the LBS trackers use the command DW to get a position fix and the GPS trackers use a varity of methods.
They all use GSM and GPRS for sending position info to cell phones and tracking web sites
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