Maretron Direct Current DC Monitor - DCM100-01

Maretron Direct Current (DC) Monitor – DCM100-01

Get real-time insight into your vessel’s electrical health with the Maretron Direct Current (DC) Monitor – DCM100-01, a precision instrument designed to monitor, log, and display critical DC electrical system parameters. Whether aboard a powerboat, sailboat, yacht, or commercial vessel, this monitor gives you the data you need to manage batteries, charging systems, inverters, and electrical loads with confidence.

The Maretron DCM100-01 continuously tracks key metrics including battery voltage, load current, power (watts), accumulated energy (amp-hours), and state of charge (SOC). By communicating over your NMEA 2000 network, the DC Monitor shares data with compatible displays, chartplotters, and system automation tools, making comprehensive electrical monitoring accessible at multiple helm stations or via connected devices.

Built for the rigors of the marine environment, the DCM100-01 features rugged, waterproof connections and a compact design that fits neatly into your vessel’s electrical system. With support for data logging and alarms via the network, this monitor helps boaters prevent unexpected power loss, properly size charging systems, and extend battery life.

Technical Specifications

• Brand: Maretron

• Model: Direct Current (DC) Monitor

• Part Number: DCM100-01

• Network Interface: NMEA 2000 (IEC 61162-3)

• Metrics Monitored: Voltage, Current, Power, Amp-Hours, State of Charge

• Connectivity: Sealed NMEA 2000 connectors

• Mounting: Inline or panel installation in existing NMEA 2000 backbone

• Environmental Rating: Marine-rated for corrosion resistance and moisture protection

Benefits

• Provides real-time monitoring of battery health and electrical load

• Helps prevent unexpected power failure or battery drain

• Enables smarter charging system configuration

• Supports system diagnostics and proactive maintenance

• Integrates seamlessly with NMEA 2000 displays and automation systems

Applications

• Monitoring house batteries and starter batteries

• Tracking generator or alternator charging performance

• Integrating with battery management and inverter systems

• Power system diagnostics on cruising boats and yachts

• Fleet or commercial vessel electrical management

Summary for the User

The DCM100 is an essential tool for boaters who want a high-tech view of their electrical health without the complexity of traditional shunt-based wiring. Its ability to calculate Time Remaining is particularly valuable for sailors and cruisers who need to manage limited battery capacity while at anchor.

Pro Tip: To configure the battery capacity and "Time Remaining" floor, you will need a Maretron display (like a DSM410) or a gateway (like the USB100 or IPG100) with N2KAnalyzer software.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Manufacturer : Maretron
Manufacturer Part No : DCM100-01
UPC : 873804000183