Smoke Detectors

There are principally 3 types of smoke detection devices
1.Ionisation Smoke Detectors
2.Photoelectric Smoke Detectors
3.Infra Red Smoke Detectors
All of which are available in either conventional or addressable formats.

Ionisation Smoke Detectors

Ionisation Smoke Detectors are generally better at detecting smaller smoke particles such as that produced by rapidly burning fires but are less sensitive to the larger smoke particles generated by smoldering fires etc.

Photoelectric (Optical) Smoke Detectors

Photoelectric Smoke Detectors are generally more sensitive to larger smoke particles such as that generated by dense smoke or smoldering fires but are less sensitive to small particles of smoke found in rapidly burning fires. The growing use of flame retardant materials in modern building construction has led to Photoelectric (Optical) Smoke Detectors being more widely used and are now the most common detector found in new fire alarms.

Infra Red Smoke Beams

Distances of up to100 meters can be covered by Infra Red Smoke Beams and with control and indicating equipment mounted at low level IR Smoke Beams are ideal for high level detection and / or for covering large open areas such as warehouses, industrial plants and shopping centers etc. where access for installation and maintenance of traditional 'point' detectors would prove difficult.