The Vaisala AviMet? PC-Based Runway Visual Range System (RVR) is the only FAA approved?RVR system. It provides fully automated runway visual range assessment and reporting for airports.
The FAA-approved runway visual range (RVR) system utilizes measurements from the FS11 Visibility Sensor, the LM21 Background Luminance sensor, and the newly developed Runway Light Intensity Monitor (RLIM), which determines the intensity settings of the runway lights. This combined sensor system is integrated with a Data Processing Unit (DPU) and provides critical RVR information to support precision landing and takeoff operations in the National Airspace System (NAS)