HL Hull Leak Monitor
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DC leakage monitoring for metal-hull boats

Hull Leak Monitor

Monitor up to 4 battery banks, get historic trends and automatic alerts, and use continuous debug mode to help find the circuit causing the problem.

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Front view product mockup of the Hull Leak Monitor panel with LCD readings and leakage level indicator lights.

How it works

Scans up to 4 battery banks for DC hull leaks.

Hull Leak Monitor checks the positive and negative side of each battery bank against the hull reference, logs numerical readings, and keeps simple panel status visible through the LCD and leakage level LEDs.

Peace of mind, without remembering to use the tester.

Automatic periodic scanning

Install the device and forget about it.

In monitoring mode, the device wakes at the configured interval, such as every hour, scans all battery banks for leaks, stores the readings, updates status LEDs, and if necessary raises an alert by email, sounds a buzzer, or activates an external relay if configured.

Actual trends, no more wondering when it started.

History instead of one-off checks

Traditional indicators show the present condition. Logged trends help owners see whether a conductor is stable, slowly changing, or moving during solar panel operation, shore-power use, or heavy rain.

Actual Ohm values and sound feedback while you work.

Continuous troubleshooting mode

Select one battery terminal and watch the live value change as you work. Fixing one leak in presence of another has a noticeable effect, contrary to pure LED-based monitors.

Higher and lower beeps keep you aware of changes while you are working deep in the hull, without calling someone back at the panel to read values to you.

Capabilities

Key specifications.

  • Power input: 12 V or 24 V DC, reverse-polarity protected.
  • Battery monitoring: up to 4 battery banks, positive and negative, for 8 monitored wires.
  • Automated scans: periodic scan interval is adjustable, between one hour and off.
  • Alerts: sound alerts with a sound-off switch, email alerts if Wi-Fi is set up, and external relay output.
  • Controls: each function has a dedicated hardware button. No fumbling through LCD menus.
  • Status LEDs: visual alerts.
  • Wi-Fi: connect to the onboard Wi-Fi to send email alerts and access the historical data dashboard.
  • Web portal: visualize your data or download it as a .csv text file.
Back view product mockup of the Hull Leak Monitor panel showing the connector side.

Join the waitlist

Get product updates and launch news.

Join the waitlist for updates, installation notes, and early availability announcements.

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Submits through Brevo.

Important note

Hull Leak Monitor is a monitoring tool and diagnostic aid for aluminium and steel boats. It supports troubleshooting, but it is not a replacement for a qualified marine electrician.