PRODUCT LEAFLET Photoelectric smoke detector 4452 ■ State of the art detector for highest safety ■ Nuisance alarms reduced by up to 46% by using variable sensitivity and time delay based on smoke changes just before and after fire alarm level has been reached ■ A learning function will ensure that the most suitable fire alarm algorithm is always used ■ High-tech mesh net prevents dust and insects to enter the detection chamber ■ Tested and approved according to EN54-7 ■ VdS: G213028 ■ CPD: 0786-CPD-21252