Photo-Electric Smoke Detector

Photo-electric smoke detector utilises the light scatter sensing principle. It has an infrared light source which emits signals and a photo-diode which senses the scattering light with the effect of smoke entering the chamber. The chamber is protected with thin metal mesh for protection from dust, insects and other external interferences. The detectors are EN 54-7 and EMC Directive 89/336/EEC certified.