Immobilisers also are a prerequisite to move Thatcham Group 1 exams and should be passively established – Which means without any action from the motive force – when no less than two working techniques or a single Handle unit useful for usual Procedure needs to be isolated. For more info https://medium.com/@trackerfit11/why-choosing-a-thatcham-tracker-strengthens-vehicle-security-6b79d8a9c256