Thatcham car alarm

There are two Thatcham car alarm categories in the UK; category1 which is and alarm immobiliser and cat2 to 1 is an alarm on its own but designed to integrate with cars that already have a cat2 immobiliser. Both Thatcham car alarms can be used with cars that already have an existing category2 immobiliser but only a full cat1 should be fitted to cars without an existing class2 immobiliser.

Thatcham car alarm for cars with cat2 are cheaper and quicker to install because they use the existing immobiliser so they are less complicated to manufacture and install. Cat 2:1 Thatcham car alarms are suitable for newer UK specification cars as most of them come factory fitted with a class 2 immobiliser

Thatcham car alarm for cars without category2 must be be fitted with a full cat1 alarm with integrated 2 or 3 circuit immobiliser all combined in one unit. These Thatcham car alarms tend to be fitted to older cars or unofficial imports where they are not designed to UK specification in terms of Thatcham security systems.

Some of the most popular Thatcham car alarm makes are; Avital, Clifford, Cobra, Gemini, GT, Toad and Viper. Specifications for Thatcham car alarms vary from each manufacturer and model range but on they all have the following basics; door, bonnet and boot protection, ultrasonic or microwave interior protection, 2 or 3 circuit immobilisation, a self powered siren, remote control central locking, 2x high security remotes and battery backup siren.

Thatcham car alarm installation should be carried out by an authorised installer who will provide a Thatcham certificate after the fitting is completed. Thatcham car alarms vary in time and complexity to fit and you will have to allow more time for the fitter to install any optional extras sensors.