The SD-651 is designed to meet the performance criteria designated by UL. Its sensing chambers are sealed against back pressure air flow, dirt, and insects.
The Thermotech 302 Series rate-anticipation heat detectors operate within a controlled range of two to three degrees of their set points, regardless of the speed or rate of temperature rise.
The Local Control panel is the interface between field devices such as loudspeakers and local audio sources. EVACPRO-G2 is a cost effective solution for requirements less than 16 loudspeaker circuits(