MRD-21 RVR & QNH Display
MicroStep-MIS MRD Display is equipment used to display three runway-visibility-range values and one QNH (atmospheric pressure) value in common display.

MRD-20 contains advanced micro-controller system for computing ICAO-compliant values from incoming data. The RVR values are usually obtained from transmisometers or forward scatters (situated at TDZ , middle and END runway zones, QNH is obtained from electronic barometer or datalogger connected into display unit.

For airport usage, display allows to show runway designator in the upper right corner. Runway switch allows to select incoming data (corresponding to one of predefined runways) from common serial line.

MRD-20 is designed for professional meteorological use at the airports, meteorological stations, etc… following the standards of international authorities (ICAO and WMO). It can be used as desktop device or can be mounted on a wall or integrated into a panel.


RVR and QNH numeric displays:
  • Runway Visibility Range at touchdown zone (TDZ)
  • Runway Visibility Range at the middle third of runway (MID)
  • Runway Visibility Range at the last third of runway (END)
  • QNH atmospheric pressure

MRD-21 RVR & QNH Display - Product sheet