Tyco Fire & Security Fire Detection Systems
Check against the official notice below — it lists the full affected range.
Smoke sensors in certain SimplexGrinnell, ADT, and Ansul fire detection systems installed in commercial buildings since August 2004 may experience reduced sensitivity to smoke when exposed to high humidity and high temperature conditions. This reduced sensitivity could delay the detection of smoke during a fire. The affected sensor model numbers are: 4098-9714, 4098-9755, 4098-9757CA, 4098-9714C, 4098-9755C, 430631, 4098-9714EA, 4098-9755EA, 430634, 4098-9754, 4098-9756, 430654, 4098-9754C, 4098-9756C, 430719, 4098-9754EA, 4098-9757, and 431190.
Commercial building owners and managers with these sensors will be contacted directly by one of the distributors to verify whether their system is included in the recall and to arrange for a free software upgrade.
Written by software from the official notice below. Not reviewed by a lawyer.
Sensors in these fire detection systems could experience reduced sensitivity to smoke in conditions of high humidity and high temperature. If this occurs, these sensors could delay detecting the presence of smoke in the event of a fire.
Commercial building owners and managers with these sensors will be contacted directly by one of the distributors to verify that the system is included in the recall and to arrange for a free software upgrade.
The smoke sensors in these fire detection systems were installed beginning August 2004 in certain SimplexGrinnell, ADT and Ansul fire detection systems in commercial buildings throughout the U.S. The sensor model numbers listed below are included. Building owners and managers with these sensors will be contacted. 4098-9714 4098-9755 4098-9757CA 4098-9714C 4098-9755C 430631 4098-9714EA 4098-9755EA 430634 4098-9754 4098-9756 430654 4098-9754C 4098-9756C 430719 4098-9754EA 4098-9757 431190
Official record: U.S. Consumer Product Safety Commission ↗
Republished from the official source above; details can change — the source record controls.