General, the SpyTec Atlas Mini GPS Tracker is a good alternative if you wish to keep your auto (and its driver) Safe and sound and seem for below $200 a year. OBD devices are seen to anybody who is aware of exactly where to look Until you intentionally relocate/disguise them. https://vodafone-automotive22097.newsbloger.com/40616683/details-fiction-and-stolen-car-trackers