The Marine Data MD67ROT is a compact, IP66-rated weatherproof analog dial Rate of Turn (ROT) indicator manufactured in the United Kingdom by Marine Data Systems. Specifically designed for exposed bridge wings, open steering positions, flybridges, and space-constrained wheelhouse consoles, the MD67ROT decodes digital NMEA 0183 sentences ($ROT or $ROTA) to present real-time angular velocity during docking, pilotage, and maneuvering.

The instrument features a clear center-zero analog pointer dial card (calibrated for standard rate-of-turn ranges such as ±30°/min or ±300°/min) for immediate visual determination of Port and Starboard turning speeds. Built into a durable, powder-coated aluminum alloy enclosure, the unit includes dimmable red LED backlighting to ensure glare-free night-watch operations on open deck stations without impairing dark-adapted vision.

Key Features:
• Compact IP66 Weatherproof Design: Fully sealed enclosure engineered for exposed bridge wing bulkheads, outdoor helm stations, and compact consoles.
• Clear Center-Zero Pointer Dial: High-visibility analog pointer layout provides intuitive visual feedback of Port and Starboard turning rates.
• Universal NMEA 0183 Compatibility: Automatically senses and decodes serial NMEA 0183 rate-of-turn sentences ($ROT, $ROTA).
• Variable Red Night Illumination: Dimmable red LED dial backlighting controlled locally via rotary knob or remotely via NMEA serial commands.
• Flexible Mounting Formats: Designed for flush panel cutout mounting or bracket mounting using an optional mounting trunnion.