Introducing our flagship product – The Ei3030 Multi-Sensor Fire and Carbon Monoxide Alarm!

Alarm Sensor Types

Which alarm sensor goes where?

Fire alarms have different sensors to detect different fire types. Some alarm sensors react to heat and some to the physical smoke created by a fire. By fitting the right type of alarm sensor you will avoid nuisance alarms and get the best protection.

Here is our guide to choosing the right alarm for each area within a property. The two houses below show rooms that are colour coded to show which sensor types are best suited to each area of a typical property.

Layout using Multi-Sensor fire alarms:

Layout using single sensor fire alarms:

Multi-Sensor Alarm

Responds to all fire types from fast flaming to slow smouldering providing the best fire response.

A multi-sensor alarms contains both an optical and heat sensor to detect both smoke and heat. As the alarm intelligently monitors both sensors, the risk of nuisance alarms is virtually eliminated.

Multi-Sensor Alarms should be installed in the Hallway, Landing, Living Room, Dining Room and Bedrooms.

We recommend the Mains Powered Multi-Sensor Fire Alarm – Ei3024

Optical Sensors

Detects smoke from slow, smouldering fires such as electrical fires

Alarms containing optical sensors use an infra-red beam to detect smoke and are less prone to false alarms from cooking fumes if fitted in the hallway next to kitchens.

Optical Alarms should be installed in the Hallway, Landing, Living Room, and Dining Room

We recommend the Mains Powered Optical Smoke Alarm – Ei3016

Heat Sensors

Detects changes in temperature using a thermistor

Alarms containing heat sensors only detect changes in temperature using a thermistor. The trigger level is set to 58°C degrees. Ideal for kitchens as they will not nuisance alarm from cooking fumes but should not be used in other areas of a property as they will not provide the speed of response required – smoke alarms should be used instead, see above for guidance.

Heat Alarms should be installed in the Kitchen and Garage.

We recommend the Mains Powered Heat Alarm – Ei3014

Interconnected Alarm Systems

Interconnect your alarms for full audibility

Regardless of the sensor type, alarms should be interconnected throughout a property to ensure all alarms sound in the event of an activation, providing audibility for the occupants. By using RadioLINK, alarms can be interconnected wirelessly using Radio Frequency signals to reduce the time and disruption from running cabling between the alarms.

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