Thatcham, also known as the Motor Insurance Repair Research Centre, is responsible for measuring and categorising the level of vehicle security a tracking system offers. The ‘S5’ is an indicator of the trackers Thatcham classification. All Thatcham approved tracking systems are designed to meet each Thatcham Category’s specific criteria before installation.

One of the key differences between the S5+ and S5 is that remote immobilisation is now an optional feature in the S5 tracking system, ideal for those with a smaller budget but are still looking to secure their vehicle fleet. Your driver ID card can now also be kept on your keys for more convenience.

Automatic Driver Recognition, or ADR, is an added security feature that ensures no unauthorised personnel can access your vehicle. Each designated driver will keep a tag on their person. If the car is moved without one of these security tags in close proximity, the tracker will automatically send out an alert.

The category S7 has many of the same features as the Thatcham category 5 tracker, including 24/7 monitoring using GPS technology and tow and tamper alerts. The key difference between these two classifications of vehicle tracking systems is that the S7 does not use driver recognition and alerts. The S7 Thatcham classification can be more budget-friendly because it does not include the most advanced vehicle security features. Ultimately, both models are still insurance-approved and highly effective, so the choice comes down to your personal requirements. For more information, check out our guide to choosing between the S5 and S7 trackers.

The S5+ offers one additional feature that the Thatcham category S5 lacks: immobilisation when the authorised driver tags are not present. More than just sending an alert in the case of an unauthorised movement, the S5+ tracker actually immobilises the vehicle so the would-be thief cannot move it. This optional extra feature makes the S5+ a popular choice among high value vehicle owners who want total security for their property, and who want to enjoy the lowest premiums from their insurance companies.

Thatcham, also known as the Motor Insurance Repair Research Centre, is responsible for measuring and categorising the level of vehicle security a tracking system offers. If a vehicle tracking system is ‘Thatcham-approved’, it means the system meets the high standards set by Thatcham Research. Thatcham-approved vehicle trackers, like the S5 tracker, have undergone rigorous testing to ensure they provide effective vehicle security and safety.