The NASA Marine BM-2 is a compact 24 V battery monitor for lead-acid banks (flooded/AGM/gel) up to 600 amp-hours (Ah), providing continuous voltage, current and state-of-charge readouts in a compact white enclosure. Ideal for boats, RVs and off-grid systems.

• Compatible with 24 V lead-acid systems up to 600 Ah
• Includes a precision 100 A shunt for accurate current and amp-hour measurement
• Prefabricated cable assembly for simple DIY installation
• Measures voltage, charge/discharge current and amp-hours (amp-hour counter)
• Displays state of charge (SoC) and estimated time to charge/discharge
• Compact white enclosure designed for marine and mobile applications
• Continuous monitoring helps extend battery life and reduce failure risk
• Related 24 V battery monitors and precision shunts

Box contains the NASA Marine BM-2 compact display, a precision 100 A shunt and a prefabricated cable assembly.