The 700 series detectors feature an interchangeable head
and base with a light-scattering optical sensor that provides stability and
excellent response to a wide range of fires. A pulsed infrared LED light source
and a high-speed photodiode sensing element are housed in an omni-directional
sensing chamber, which is protected by an insect screen. For easy cleaning, the
detector features a fieldreplaceable optical chamber.
Built-in drift compensation automatically adjusts the
sensitivity as the detector gets dirty.