UTC Fire & Security 700 series conventional multi-sensor with relay output and auto reset feature

The DP721RTA is a multi-sensor detector (optical enhanced by heat) with field exchangeable optical chamber and local relay output facilities. This detector will automatically reset when the fire alarm condition has been removed. 700 Series detectors continually monitor their own sensitivity and operational status. Once a day they perform a full diagnostic test that includes dynamically testing the sensing chamber and internal electronics.