ENGINE, FUEL & NMEA
Every clean trip teaches Salinity what normal looks like for your boat.
Health starts with hard safety limits, then organizes trip data into speed-and-load groups for each engine. It learns which RPM, fuel flow, oil pressure, temperature, voltage, and other supported readings normally belong together instead of judging each number alone.
The example updates every 0.8 seconds and uses fractional speed plus changing acceleration and deceleration rates to mimic throttle and hull momentum. Salinity compares that live motion with the nearest learned one-MPH group.
At idle, all five readings match this boat’s learned operating group.
At idle, all five readings match this boat’s learned operating group.
Multi-engine capable. Illustrative neutral-idle, forward, reverse, and one-MPH groupings—not manufacturer limits or live boat data. Reverse grouping requires an available gear or direction signal.
COMPLETE SYSTEM INDEX
Everything in Health.
Every tool carries its status. Available, field validation, and roadmap never get mixed together.
Engine watch
Hard safety limits
Manufacturer-style limits protect oil pressure, coolant temperature, RPM, and alternator voltage from the first trip.
Multi-engine monitoring
Keeps separate live readings, learned ranges, alerts, and history for every configured engine.
Trip-built normal
Uses complete trips to build a dedicated neutral-idle group plus organized forward and reverse speed-and-load groups for every engine and supported channel.
Speed-linked statistics
Attaches RPM, fuel flow, oil pressure, coolant temperature, voltage, and other supported readings to direction and each observed one-MPH group across the boat’s operating envelope.
Same-trip fallback
Uses the current trip while the boat-specific baseline is still young, so early trips are not treated like mature history.
Plain-English alerts
Explains the changed reading, likely causes, and one useful next check without PGN codes or statistics jargon.
Relationship drift
Recognizes when a reading may be inside a broad limit but no longer matches the boat’s normal combination of speed, RPM, fuel burn, load, pressure, temperature, and voltage; real-engine performance is still being proven aboard.
Mechanic Live
Turns recorded irregularities into an exact event timeline, whole-system snapshot, and owner-controlled mechanic package—your boat’s diagnostic system in your pocket.
Fuel & upkeep
Fuel economy
Shows how efficiently the boat is running from the data available on the network.
Range
Combines current burn with configured tank capacity to estimate usable distance home.
Maintenance
Tracks service items against recorded engine hours, including due-soon and overdue states.
Engine trends
Keeps readings and anomaly history beside the trips that produced them.
Fleet comparison
Compare baselines across boats without exposing another captain’s raw data.
Connection & diagnostics
Read-only NMEA 2000
Listens worldwide through a compatible NMEA 2000-to-WiFi gateway and has no code path for sending commands back to the bus.
No brand whitelist
Uses supported standard PGNs from any compatible NMEA 2000 ecosystem. Named chartplotter and engine brands are examples, not a closed compatibility list.
Live channels
Shows the GPS, depth, engine, fuel, battery, and environmental readings the boat is actually broadcasting.
Gateway diagnostics
Makes connection state, data formats, GPS source, and capture interruptions visible.
Screen-off capture
Native recording is designed to survive ordinary screen lock; current release continuity remains under field validation.
WHY IT HELPS ABOARD
A number can be inside a broad red line and still be wrong for the job the boat is doing. Salinity builds organized data groups for neutral idle, forward travel, and reverse, so it knows the normal RPM and fuel burn at 25 MPH are not the same as 30 MPH or backing down—and keeps pressure, temperature, voltage, load, and other supported readings attached to that context.
SIGNED FIELD PREVIEW