Two flow sensors — supply and return — with temperature compensation for the hot return fuel. Real burn rate, trip totals and engine load on any chartplotter as standard engine data. Built for the classic mechanically-injected diesels that report nothing on their own.
Supply minus return with dual temperature probes — the hot-return density error that single-sensor setups silently ignore is corrected continuously.
Fuel rate, trip fuel used and engine load as standard PGNs — Raymarine, Garmin, B&G, Simrad show them with zero configuration.
With RPM and GPS on the bus: litres per nautical mile, live, binned per 100 RPM — the exact throttle where your boat travels cheapest.
Live burn against the factory clean-hull curve at the same RPM. Consistently +15% over the line? Time to look at the bottom.
Editable engine curves with factory presets, refined automatically from how your engine actually runs.
Live tiles, a 30-minute consumption graph, trip & lifetime totals that survive power-off, WiFi setup with network scan, OTA updates.
Yanmar GM, HM and YM series · Volvo Penta MD2000, D1 and D2 · Beta Marine · Nanni · Vetus · Bukh — pick your engine from the built-in library and the reference curves load themselves. Calibrated a different engine? Share your configuration in one tap and it joins the library for everyone.
Common-rail engines report fuel data from their own ECU — the Fuel Meter is for the mechanical diesels that don't.