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MD77RDI Dial Rudder Angle Indicator

SKU: MNE-0016

MD77RDI Dial Rudder Angle Indicator

Dial Rudder Angle Indicator

  • NMEA based Rudder Angle Indicator. The MD77RDI provides a clear and easy to read 118mm diameter analogue display graduated in 1-degree increments from 45 degrees PORT to 45 degrees STARBOARD

From Marine Data

  • Clear and Easily Read Analogue Display
  • Panel or Bulkhead Mounted
  • Accepts NMEA data from a Rudder Angle Transmitter
  • Local and Remote Dimming Control
  • Supports digital RS422 NMEA 0183
  • Wheelmark Approved*


The MD77RDI from MARINE DATA is a NMEA-based Rudder Angle Indicator, housed in a robust, compact aluminium enclosure. Fitted with touch panel dimmer control for background and pointer illumination, it is ideal for any vessel.
The MD77RDI provides a clear and easy to read 118 mm diameter analogue display graduated in 1-degree increments from 45 degrees PORT to 45 degrees STARBOARD.
Compact and rugged, the MD77RDI offers a solution for locations where the available space is limited and may be either bulkhead or panel mounted. Finished in jet black to complement other marine navigation equipment.
The MD77RDI from MARINE DATA: flexible in application, easy to install and simple to maintain.


  • Automatic warning of lost valid rudder sensor angle data and automatic detection of previously lost heading data without a reset being required
  • Local and Remote dimming control
  • Wheelmark Approved when installed as part of the MARINE DATA Rudder Angle Transmission and Indication System


  • The MD77RDI is designed to display RSA Rudder Sensor Angle Data transmitted from marine equipment compatible with the NMEA 0183 data protocol (for example, the MARINE DATA MD61 Rudder Angle Transmitter)
  • Can be used with another indicator to show dual rudder positions for a vessel equipped with dual rudders

By Marine Data

Additional information

Weight1.9 kg
Dimensions33.00 × 24.00 × 21.00 cm
Item Measurements

Please see Data Sheet


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