Air duct detector housing


The OP-40 air duct detector housing is designed for operation with the following series of  POLON-ALFA system fire detectors:30, 40, 4043, and 4046.

It monitors airflow within the ventilation ducts and in areas where, due to the cross section of the duct, high air velocity and other factors, direct installation of the detector itself is not possible.


175x175x100 mm

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