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NASA Marine BM-COMPACT Battery Monitor 12 or 24VDC - White

  • The BM-1 compact is designed to monitor performance of 12 volt lead acid battery systems with capacities of up to 600 Amp hours. It is supplied complete with a precision 100 AMP shunt and a prefabricated cable assembly to enable simple DIY installation.

The unit continuously monitors voltage, current (charge or discharge), number of amp/hours (charge or discharge), the battery’s state of charge and the time to charge or discharge. This information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure.


  • Compact size 125 x 62 x 23mm with high contrast LCD
  • Supply current 1.5 milliamps
  • Battery capacities 5 - 600 AMP hour
  • Load current 100 AMPS Maximum
  • Supplied with precision shunt and prefabricated cables for simple DIY installation.

Whats in the Box

  • Precision 100 AMP shunt
  • Prefabricated cable assembly
    • BM Compact White 12v
    • BM Compact White 24v

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