smoke alarm smoke detector types for fire safe

​This modern smoke detector is called photoelectric smoke detector(hereinafter called detector) it has the features of dust-p roof , moth-proof and anti-interference from outside light,all for the stability of the product , especially for detecting smoldering or burning object. The detector is suitable for detecting the smoke in residential area, shop, hotel, restaurant, office building , school, bank, library, computer house and storehouse , etc. more detail:https://www.firealarmfactory.com/top-smoke-detectors.html