Classification one gives the best degree of protection with both alarm and immobiliser capabilities mixed. Group two provides only an immobiliser, which nevertheless stops the vehicle from starting without having authorisation. The two are passively set and offer you fantastic security versus theft. Thatcham Research, an unbiased automotive safety physique, https://socialmediaentry.com/story5935676/the-single-best-strategy-to-use-for-thatcham-approved-trackers