The Thatcham Vehicle Security Categories
Category sets system type, it is not a rating of effectiveness
Category 1
Electronic Alarm and Immobiliser
Alarm
Perimeter detection
Ignition detection
Passenger compartment movement detection
Living compartment
movement detection (MandatoryLeisure vehicles only)
Inclination detection (Mandatory Motorcycle)
Audible warning with battery back
up power supply
Immobiliser
Passively set
Isolates a minimum of two operating circuits or systems
Category 2
Electronic Im
mobiliser
Immobiliser
Passively set
Isolates a minimum of two operating circuits or systems
Category 2-1
Electronic Alarm
upgrade
Alarm
Perimeter detection
Ignition detection
Passenger compartment movement detection
Living compartment movement detection
(Leisure vehicles only)
Inclination detection
(
M
andatory
Motorcycle only)
Audible warning with battery back
-
up power supply
Category 3
Mechanical Immobiliser
ï‚·
Immobiliser
Easy to set and unset
Isolates a minimum of one operating system
Permanently or tempor
arily installed
Category 4
Wheel Locking Devices
ï‚·
Reliability and Durability
Secure key replacement procedure
Resistance to attack
Category 5
Stolen Vehicle Tracking
and Recovery
ï‚·
Battery Back
-
up power supply
Bi Directional communication
Street level
mapping
Association of Chief Police Officers
(ITS)
agreement
Positional data store
Illegal motion detection (Ignition Off theft alert)
Driver identification (Ignition On theft alert)
Engine crank Inhibition
Secure Operating Centre (SOC)*
*
meeting NSI requirements,
and
HOSDB Publication No. 14/02
Provides level 1 Police response
Category 6
Stolen Vehicle Tracking
ï‚·
Battery Back
-
up power supply
Bi Directional communication
Street level mapping
Police or Licensed security agreement
Positional data store
Illegal motion detection (Ignition Off theft alert)
Category 7
Stolen Vehicle Location
ï‚·
Battery Back
-
up power supply
Bi Directional communication
Positional data store
RF location
Law Enforcement
Agency agreemen