Spec Sheet Preview: The SI004 and SI004/2 Illuminated Area of Rescue Signs provide indication for Area of Rescue locations. The signs comply with the Americans with Disabilities Act (ADA) requirements, and are intended to be used in conjunction with Alpha Communications® / TekTone NC150R Area of Rescue Systems, AlphaRefuge™ Systems (or equivalents systems by others). The signs provide visual directions to areas where people who require assistance in evacuating a building can go to await assistance. The SI004 is a single-sided back-li …