The SMART SHUNT 500A/50mV is a high‑precision battery monitoring solution engineered to seamlessly integrate into marine NMEA2000 networks. With a robust 500 A shunt, this device accurately measures the true current flowing into and out of your battery bank and translates it into meaningful metrics such as state of charge (SoC), consumed and remaining amp‑hours (Ah), real‑time current, system voltage and multiple temperature readings. This data is transmitted over the NMEA2000 backbone for display on compatible instruments and chartplotters, helping you manage power consumption and avoid surprising power loss at sea.

Designed for flexible installation and easy configuration, the SMART SHUNT includes built‑in Wi‑Fi, allowing setup and parameter adjustments — such as battery type (lead‑acid, AGM, GEL, LiFePO4), alarm thresholds and more — to be done wirelessly from a smartphone or tablet. The device supports up to three battery banks and works in systems up to 60 VDC, making it ideal for boats with large or multiple battery systems such as house, start, or auxiliary banks.

With marine‑grade reliability and compatibility with NMEA2000 displays, the E‑Series multifunction instruments, and chartplotters, the SMART SHUNT simplifies onboard energy monitoring and provides the insights needed for efficient and safe voyages.

Key Features 

• Smart battery monitoring shunt with NMEA2000 support for seamless integration with marine displays and instruments

• Built‑in Wi‑Fi for easy wireless configuration and monitoring (via smartphone or tablet)

• Displays State of Charge (SoC), consumed Ah, remaining Ah, current and voltage

• Includes 3 temperature sensor inputs for detailed thermal monitoring

• Supports up to three battery banks

• Designed for systems up to 60 VDC

• 500 A shunt capacity (50 mV) for accurate current measurement

• Configurable for multiple battery types (Lead‑acid, AGM, GEL, LiFePO4)

• Marine‑grade design suitable for harsh onboard conditions