Marine Data Systems MD77RDI Dial Rudder Angle Indicator

The MD77RDI Dial Rudder Angle Indicator from Marine Data Systems delivers precise rudder position monitoring for seagoing vessels through a clear, easily readable 4.6-inch diameter analog display. This NMEA 0183-based indicator features graduated markings in 1-degree increments from 45 degrees PORT to 45 degrees STARBOARD, displaying rudder angles up to 40 degrees with exceptional clarity. Housed in a robust, compact aluminum enclosure with a jet black fine-texture powder coat finish, the unit includes integrated touch panel dimmer control for both background and pointer illumination. The MD77RDI automatically detects lost or restored rudder sensor angle data without requiring manual reset, ensuring continuous operational reliability. Supporting digital RS422 NMEA 0183 protocol, it accepts data directly from compatible rudder angle transmitters and marine equipment. Installation flexibility is enhanced through panel or bulkhead mounting options using the supplied panel mounting kit. Wheelmark approved when installed as part of a Marine Data Rudder Angle Indication System, this indicator is ideal for locations with limited space and can be configured with a second unit to display dual rudder positions on vessels requiring such capability.

• CLEAR ANALOG DISPLAY: Features a 118mm (4.6 inch) diameter dial graduated in 1 degree increments from 45 degrees PORT to 45 degrees STARBOARD for easy rudder angle reading up to 40 degrees.
• NMEA 0183 COMPATIBLE: Accepts digital RS422 NMEA 0183 data from rudder angle transmitters and automatically indicates lost or restored valid sensor data without requiring manual reset.
• ROBUST CONSTRUCTION: Housed in a compact aluminum enclosure with Jet Black fine-texture powder coat finish, designed for external use on seagoing vessels in marine environments.
• FLEXIBLE MOUNTING OPTIONS: Panel or bulkhead mounted installation with supplied panel mounting kit, optional MD77TB bulkhead bracket kit available for versatile placement in space-limited locations.
• DIMMING CONTROL: Touch panel dimmer control adjusts background and pointer illumination, with optional MD01/PMD remote dimmer control (0-24V DC) for convenient brightness adjustment.