Fire Alarm
Detectros >> Detector Ancillaries
Minerva Duct Probe Unit MP69

Smoke detectors are not normally mounted directly inside ducts because the airflow only allows the detector to sample air from a small section of the duct and such detectors would rapidly become dirty. Instead, ducting is protected by the use of probe units which gather air from a cross section of the duct and pass it through a smoke detector head.