Harris Corp. [HRS] has introduced the GR-100 wireless location tracking system that tracks and transmits the location of firefighters and first responders while they are inside buildings, allowing on-scene commanders to better coordinate efforts and monitor personnel. The GR-100 uses accuracy enhancing algorithms in addition to inertial sensors and GPS capabilities. “The compact, personnel-mounted Harris GR-100 System provides pinpoint location data in three dimensions, thus meeting a long- standing critical need of first responders for in-building location awareness,” says Steve Shanck, president of Harris Public Safety and Professional Communications. The system includes a tracker module that is mounted to a firefighter’s self contained breathing apparatus frame, a network radio system to communication location information. Location information in three dimensions is updated every few seconds.