The Thatcham Vehicle Security Categories

Thatcham have defined a number of categories for vehicle security devices ranging from combined Alarms and Immobilisers through to After Theft Tracking Systems. In each category, third party security products have been evaluated against "The British Insurance Industry's Criteria for Vehicle Security", using specific tests to indicate the effectiveness of the product. The product listing is updated as and when new security systems are judged to have successfully complied with the Criteria. Each product is subject to a review after 12 months.

Note that Category sets system type, it is not a rating of effectiveness.

The following categories exist to STOP THE THEFT of a vehicle or parts of

• Electronic Alarm and Immobiliser - Category 1
• Electronic/Electromechanical Immobiliser - Category 2
• Electronic Alarm Upgrade [General Application] - Category 2-1
• Mechanical Immobiliser - Category 3
• Wheel Locking Devices - Category 4

The following categories exist to RECOVER A VEHICLE after it has been stolen

• After-Theft Systems for Vehicle Recovery - Category 5
• Stolen Vehicle Tracking Systems - Category 6
• Stolen Vehicle Location Systems - Category 7

In order to make the task of searching simpler, the full listing of Aftermarket and Original Equipment Systems (OEM) has been split up into individual categories which can be accessed by clicking the links above.

Alternatively a full listing covering all Categories can be accessed below

• Full Security Listing (pdf)

Clicking on the links will give a fuller explanation of the types of products contained within each category as well as an indication of the kinds of tests carried out.

If you wish to search only for Aftermarket Systems, please use the search facility on the right.