Fire Projects recommended that Directional Sounder has an integral audio amplifier that produces a pulsating sound consisting of broadband low, mid, and high range sounds. The broadband noisemakers it possible to determine the location of the sound. There are four pulse patterns that can be used to create anegres pathway out of a building and to mark perimeter exits. In addition to the broadband noise, the sounder is capable of playing an alert message in the form of a recorded voice message or other audible signals. These messages will instruct the occupants of what action to take as they approach the directional sounder and will allow them to react quickly and confidently when the sounder is activated. Fifteen different language combinations are available to instruct occupants thither are nearing an exit, a stairway up, a stairway down, or an area of refuge. The directional sounder also incorporates an optional disabled feature for use in conjunction with a control module or heat sensor.The directional sounder features a number of field selectablepower settings including high, medium-high, medium-low, andlow. Installation ease and pleasing aesthetics are achieved by

a low-profile compact design, and by the ability to flush mounting a 4” x 4” x 2¼” back-box. ExitPoint directional sounders, fitted in addition to normal building evacuation sounders, draw people to evacuation routes in both good and poor visibility. The directional sounder can be used in a wide range of building applications. Trials consistently have shown an improvement of up to 75 precenting evacuation times in smoke and up to 35 percent without smoke. The 2007 Edition of NFPA 72 now provides installation and maintenance guidelines on directional sounders.