Smoke, Heat & CO Alarm Guide

How detector type, Grade, Category, interlinking, product compatibility and property risk shape a professional domestic alarm system.

Start with the property, not the brand

Smoke, heat and carbon-monoxide alarms are life-safety equipment. The property type, escape route, risk, required Grade and Category, interconnection and power arrangements should be considered before individual products are chosen.

Smoke, heat and CO detection

Different detector types are suited to different risks. A smoke alarm is not automatically the correct choice in a kitchen, and a carbon-monoxide alarm serves a different hazard from fire detection. Correct positioning and audibility throughout the property matter.

Interlinked systems

Interconnection allows alarms in different parts of a property to sound together. Compatibility must be checked: devices from different manufacturers or generations should not be assumed to interconnect safely simply because the bases or connectors look similar.

AVAG’s equipment preference

For professional domestic systems, AVAG normally prefers Aico because of familiarity with the range and long-term system support. Established alternatives can be considered where the specification, compatibility and budget make them appropriate. This is a practical installer preference, not a claim that one manufacturer is universally best for every property.

Testing and maintenance

Occupants should understand routine user testing and the recommended replacement life of installed devices. Professional installation does not remove the need for ongoing user checks and eventual replacement.

Questions