Different types of intruder alarm systems are graded to determine the level of protection in place. The grading starts from 1 through to 4.
Your insurer will specify which grade they require, or if you require advice on grading our consultants will advise you on the level required.
The grades are based on resilience to attack and compromise, performance and design of the systems and products installed.
Grade 1 – Low Risk
Intruders are expected to have little knowledge and tools to compromise the system. Assured Fire and Security do not install these systems
Grade 2 – Medium Risk
Thieves are expected to have an interest as the property will have items of significant value, therefore intruders are expected to have limited knowledge and tools to compromise the system. Remote monitoring of the system is an option, certain build quality is enforced along with design requirements such as 500 event memory log.
Applications – household and low risk commercial
Grade 3 – Medium Risk
Thieves are expected to have a high interest as the property will have items of high value, therefore intruders are expected to have knowledge and a full range of tools to compromise the system. Remote monitoring should be installed and have 2 paths of signalling, normally one by landline and the other by radio for back up. Detection should be able to pick up masking or covering of the unit.
Applications – Commercial and high value properties.
Grade 4 – High Risk
Thieves are expected to have a high interest in the property and are likely to be sophisticated in their planning of attack and theft, they would be expected to fully plan any intrusion and are expected to have sophisticated knowledge and tools to compromise the system. Similarities with grades 3 systems are in place and in addition detectors should be able to sense a reduction in range of the detector.
Applications – banks, museums, art galleries