Hello, I have my TK102B tracker for my P2-vision Quadrokopter concerned as "hedge" against a possible "Fly-Away". So a "Fly-Away" is me though so far not happened yet but with a tracker, you will feel it much safer. The TK102B was delivered within 2 days and a German Quick Start Guide (1 DIN A4 - page) for the main device commands was also there. In addition, the CE are - certification documents with it. The tracker comes with charger and 2 battery (850 mAh) and a CD (..alles as in the description). After loading (about 8 hours) the Tracker has been tested on a call and he immediately responded with the correct coordinates. Important when ordering via SMS - commands is to adhere exactly to the (German / English) enclosed instructions / manual, because this version only understands commands with the "#" - characters. (Eg, # # 123456 # begin). The # - so sign must always be specified with. After these initial difficulties, but to get along very well with the functions and the English Handbüchlein. Negative, and thus only 4 stars is just the battery life (max. 5 - 6 hours instead of 48 hours) and that only a single telephone number as ADMIN - phone number can be set. By SMS - command # # 123456 # smslink can however query the coordinates of each phone with an SMS (no call). This is apparently still an older firmware version, and features are not 100% identical to several more expensive TK102B - devices that are otherwise can not so find on the internet and in the Amazon. But for my needs perfectly adequate!
