Thatcham Authorized: All of our trackers are Thatcham Authorized, Meaning they have already been matter to stringent protection tests by Thatcham, to be able to find out their basic safety and usefulness. Indeed, you are able to increase as quite a few trackers as you like to 1 Strong GPS https://medium.com/@trackerfit11/caravan-trackers-and-why-they-matter-for-theft-protection-dd44f62fcad7