Analog photoelectric smoke detector 4401 FEATURES DATA GENERAL | - 10 to +50 °C ■ State of the art detector for highest safety ■ Nuisance alarms reduced by up to 46% by using Advanced Mode: ■ 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 ■ Automatic service signal to minimise maintenance costs ■ Tested and approved according to EN54-7 ■ VdS approval: G212107 ■ CPD: 0786-CPD-21174, 0786-CPD-21175
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