CPSC campaign 06551
Hazard
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.
Remedy
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 text above is quoted verbatim from the CPSC record. Confirm the affected units and the remedy with the manufacturer or CPSC. Recall data may be incomplete, delayed, or superseded.