Rate of Turn Indicator with 118mm dial display, up to 120 degrees per minute. Compact aluminium enclosure with touch panel.


The MD77ROT120 is a NMEA-based Rate of Turn Indicator, displaying the Rate in degrees per minute. Housed in a robust, compact aluminium enclosure with a touch panel for background and pointer illumination, the MD77ROT120 is ideal for any vessel.

The MD77ROT120 provides a clear and easy to read 118 mm diameter analogue display graduated in 4 degrees per minute increments. Rate range: Up to 120 degrees per minute to Port and Starboard.

Compact and rugged, the MD77ROT120 offers a solution for locations where the available space is limited and may be either bulkhead or panel mounted. Finished in Jet Black (RAL9005) Fine-texture Powder Coat to complement other marine navigation equipment.

The MD77ROT120 from Marine Data: flexible in application, easy to install and simple to maintain.


  • Clear and Easily Read Dial Display
  • Rate of Turn up to 120°min
  • Panel or Bulkhead Mounted
  • Touch Controls
  • Local and Remote Dimming Control
  • Automatic Detection of Previously Lost Data
  • Digital NMEA 0183


  • To display Rate of Turn (ROT) data transmitted from NMEA 0183 compatible marine equipment at a convenient location
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