Blue Sea 1739 Mini OLED Tank Meter - Yellow

The Blue Sea 1739 Mini OLED Tank Meter in Yellow is the compact monitoring solution serious boaters and anglers need to keep a constant eye on critical electrical system parameters while on the water. Whether you're running a full day on open water or managing systems in tight quarters, this meter delivers real-time tank level readings and electrical diagnostics on a bright, waterproof display that remains clearly readable even in direct sunlight. Its compact size makes it ideal for retrofit installations on existing vessels where panel space is at a premium.

Built by Blue Sea Systems—a trusted name in marine electrical architecture—the 1739 features a bright OLED screen that cuts through glare and reflection, ensuring you can monitor fuel, water, or waste tank levels at a glance from any angle. The meter is reverse polarity protected, guarding your vessel's electrical system against accidental connection errors that could damage sensitive onboard equipment. Its waterproof construction withstands the corrosive salt air and spray inherent to marine environments, while the compact 2 x 2 x 4 inch footprint allows installation in lockers, cabin bulkheads, or helm stations without consuming valuable real estate.

Anglers managing overnight runs, cruisers tracking fuel consumption on extended passages, and liveaboard captains benefit most from this straightforward, reliable meter. The yellow housing ensures easy visibility in low-light conditions and stands out against dark control panels. Installation is straightforward for anyone comfortable with basic 12V DC wiring, and the reverse polarity protection means peace of mind even if connections are made hastily in rough conditions. This meter pairs seamlessly with Blue Sea Systems tank sensors and works across multiple tank types, making it an essential upgrade for any serious boating operation.