Samlex Battery Monitor - 12V or 24V - Programmable

The Samlex Battery Monitor BW-01 is a programmable 12V or 24V intelligent monitoring system designed to protect and manage battery banks aboard vessels, RVs, and off-grid power systems. This compact unit automatically detects voltages between 7V and 32V, making it ideal for dual-voltage marine applications where battery health monitoring is critical to safe operation and equipment longevity.

The BW-01 uses a three-LED status indicator—green, red, and yellow—that display voltage conditions at a glance, eliminating guesswork about battery state. An integrated audio alarm sounds at user-programmable high and low voltage thresholds, alerting operators to dangerous discharge levels or overcharge conditions before equipment damage occurs. This real-time feedback is essential in marine environments where battery failure can strand a vessel miles from shore or disable critical navigation and safety systems. The programmable threshold settings allow customization for different battery chemistries, system voltages, and operational requirements.

This battery monitor serves cruising sailors, offshore fishermen, RV owners, and anyone operating multi-battery systems where monitoring each bank individually is impractical. Weighing just 0.1 lbs and measuring 3 × 2 × 4 inches, the BW-01 mounts easily in engine compartments, electrical panels, or cabin spaces without consuming valuable real estate. For 12V and 24V systems operating in remote or offshore conditions, automated voltage monitoring reduces the risk of unexpected power loss and extends battery service life by preventing deep discharge cycles.