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Balmar has combined recent technology advances to introduce a next-generation battery monitor. This new monitor has combined the best features of its 1st generation Smartgauge with the advantages of a shunt-based amp-hour counting system to come up with a battery meter that combines the best features of both. In addition, they have come up with a modular system that can be scaled to accommodate multiple battery banks and multiple meters.  The SG200 color display is easy to read, configurable, and fits any standard 2 1/16" diameter mounting hole Now you can determine your battery(s) condition from anywhere onboard with multiple displays, or simply add the optional Bluetooth® interface and Smartphone App to keep information in your pocket!


Battery parameters read


State of Charge (SoC%)

State of Health (SoH%)

Charge/Discharge Current Flow

Time Remaining

History, Faults & Alerts

Batteries supported


Lead Acid, Lithium (LiFePO4), Standard AGM, TPPL AGM, Carbon Foam AGM, and GEL Batteries 

Supports 12V-48V Battery Banks

Typically 97% Accurate within 2 Cycles

Auto-Calibrating

Does not Lose Accuracy with Age

Expandable Architecture


Support Multiple Displays (Optional)

Supports Multiple Battery Banks  (Optional)

Standard Support for 2 Start Batteries (Voltage Only)

Simple, easy-to-install Point-to-Point Network

Bright color display


Sunlight Readable, Configurable & Dimmable

60 Degree Viewing Angle

Fits in Standard 2 1/16" Gauge Socket

Optional Smartphone/Bluetooth® Gateway


Free iOS and Android Apps (Requires Bluetooth® Gateway PN SG2-0300)

Gateway is not yet available for purchase but is coming soon.

View All Parameters on your Phone

Download Product Updates