Thatcham Approved Alarms & Immobilisers
The Motor Insurance Repair Research Centre (MIRRC) is based in the town of Thatcham, hence the adoption of the term, Thatcham approval. One of the MIRRC functions is to define the specifications for vehicle security systems and carry out the approval tests.
There are three Thatcham Approval Categories for Electronic Vehicle Security Systems:
- Category 1 (CAT 1) is an alarm/immobiliser security system
- Category 2 (CAT 2) is an immobiliser security system
- Category 2 to 1 (CAT 2-1) is an alarm upgrade system
Note: Any CAT 2 Approved factory fitted immobiliser can and should be upgraded to a CAT 1 security system by installing the appropriate CAT 2 -1 alarm upgrade system. Most Insurance Companies require the installation of a Thatcham approved vehicle security system if theft cover is required.
695 CAN BUS Alarm, Thatcham Approved
The Autowatch 695CAN alarm is a Thatcham approved CAT 2-1 upgrade alarm system, designed to be used on full CAN Bus, semi CAN Bus or conventional wiring systems. The 695CAN alarm can be fitted to any compatible new vehicle that requires an alarm. This system is designed to be easily operated from the vehicles original remote controls. However, if your vehicle has only one remote control supplied as standard, adding an additional Autowatch remote control will prove more cost effective than buying an original remote control.
458RL/T Remote Ultrasonic Alarm Upgrade System, Thatcham Approved
The Autowatch 458RL/T remote alarm system has all the features and facilities of the Autowatch 457Rli/T CAT 1 system except that it does not have immobilisation. Approval No TU2 1405/0807. LCV Approval No TUL1 148/0807. Thatcham category 2-1.
171PPi Passive Proximity Immobiliser System, Thatcham Approved
The 171 PPi transponder based system requires no conscious effort by the driver to operate the system. It works exactly as the factory fitted transponder immobilisers. The only difference is that the transponders are supplied separately and are not integrated into the vehicles ignition key. Other advantages are that there are no batteries to go flat or receptacles to be damaged. Thatcham category 2. Approval No: TE2 905/0198.