The Silent Knight® SK-PHOTO Series features a modern design and expanded color options support a variety of contemporary aesthetic demands. In addition, each detector is constructed for exceptional installation and maintenance efficiency.SK-PHOTOseries smoke detectors are intelligent plug-in detectors designed for both performance and aesthetics. They have a modern, sleek, contemporary design and come equipped with enhanced optical sensing chambers that are engineered to sense smoke produced by a wide range of combustion sources in accordance with more stringent code standards. The SK-PHOTO-W Series sensitivity can be programmed in the control panel software and their sensitivity is continuously monitored and reported to the panel. Point ID capability allows each detector™s address to be set with rotary, decimal address switches, providing exact detector location for selective maintenance when chamber contamination reaches an unacceptable level.