ELKRON FIRE 80SD7U00121 FDO400 Low profile optical smoke detector

FDO400 Low profile optical smoke detector. EN54 part 7 certification n. 1293-CPD-0349

Smoke detectors work on the principle of light diffusion caused by smoke particles in the air. The detector has the function of automatic gain control; a microcontroller calculates the reading compensation to maintain constant sensitivity over time, correcting any increase in level caused by the deposit of dust inside the analysis cell. Smoke detectors must be installed in places where there are no air currents that could divert the flow of particles produced by combustion and in places where normal activities do not produce fires of gaseous materials