Blue Sea 1839 M2 OLED Tank Level Monitor

The Blue Sea 1839 M2 OLED Tank Monitor tracks up to 4 tanks with auto-calibration for unique tank shapes on one compact display. It is designed for boaters who want intuitive fuel, water, or waste tank monitoring without a separate gauge for every tank.

The included MOSFET external circuit relay can trigger an external circuit based on any value the meter measures, and the monitor works with common sending units so it drops into most existing tank setups. An auto-dimming OLED display and 80dB alarm round out the package. Browse more options in our panels, switches, and circuit breakers category.

Key Features

• auto-calibration for custom tank shapes
• compatible with common sending units
• includes external DC shunt or AC current transformer when required
• 80dB alarm

Frequently Asked Questions

How many tanks can this monitor track? Up to 4 tanks.

Will this work with my existing tank sender? Yes, it's compatible with common sending units.

Does this handle irregularly shaped tanks? Yes, it auto-calibrates for custom tank shapes.