Fire-Lite's InnovairFlex D355PL non-relay photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints capable of mounting to a round or rectangular duct. The InnovairFlex duct smoke detector senses smoke in the most challenging conditions, operating in air flow speeds of 100 to 4,000 feet per minute, termperatures of -4 degrees F to 158 degrees F, and a humidity range of 0 to 95 percent (non-condensing).
