Blue Sea Systems 1834-BSS M2 OLED DC Multimeter

Blue Sea Systems M2 OLED DC Multimeter

The Blue Sea Systems 1834-BSS (Catalog SKU 1834) is a high-precision, digital M2 OLED DC Multimeter engineered to monitor DC voltage across up to three independent battery banks and measure current flow (0-500A default, expandable to 5000A) on one primary circuit. Designed for marine distribution panels, flybridge helms, and commercial battery monitoring, it incorporates an auto-dimming, daylight-readable organic LED (OLED) display with wide viewing angles and high contrast.

The M2 display features customizable High/Low voltage and High current visual and audible alarms (80 dB internal buzzer) alongside an integrated isolated MOSFET relay to trigger external warning beacons, generators, or automated load-shedding contactors. Designed for flexible vessel integration, the meter supports multiple mounting styles (surface, flat-panel, and 360-panel systems) with IP66 front-face waterproofing. 

Key Features

• Multi-Bank Monitoring: Simultaneously tracks DC voltage across three separate battery banks and current on one primary DC line.

• High-Contrast OLED Screen: High-resolution, daylight-readable screen with anti-glare finish and auto-dimming function for night passage-making.

• Integrated MOSFET Alarm Relay: Includes an internally protected 0.5A MOSFET relay output to activate external relays, sirens, or generator start controls.

• Programmable Shunt Ratios: Compatible with standard 50mV or 100mV external DC shunts up to 5000A capacity.

• IP66 Waterproof Front Face: Surface-mount installation provides IP66 splash-proof protection against heavy sea spray and cockpit wash-downs.