FFM100 fuel flow monitor


MSRP $395

Flow meters sold separately, see accessories tab.

Winner of a 2012 Sail Magazine Pittman Innovation Award!

* FFM100 requires configuration. (Maretron DSM250, DSM410, USB100, or IPG100 needed to configure)

Link to knowledge base and frequently asked questions

  • Overview
  • Features
  • Applications
  • Application Diagrams
  • Documentation
  • Accessories
  • Example Systems

Maretron's FFM100 provides precision fuel flow information to help optimize fuel consumption, which can save thousands of dollars in fuel operating cost. The FFM100 uses state-of-the-art, positive displacement metering technology for unprecedented accuracy. In fact, the accuracy of the FFM100 is nearly that of commercial vessel systems costing tens of thousands of dollars, yet the FFM100 cost less than existing recreational systems found on the market today. Additional benefits of the positive displacement metering technology are the elimination of flow conditioning components such as straighteners and pulsation dampers. Other flow meter technologies require flow conditioning components that increase system and installation cost. The FFM100 also uses true temperature compensation with embedded temperature sensors within the meters. The returning fuel is generally hotter than the supply fuel and if not properly compensated, inaccuracies as much as 5% can occur in computing the engine's fuel consumption. The FFM100 also detects momentary reverse flow in the fuel lines due to fluctuating pressure caused by the injection pump. Less accurate systems count the reverse fuel flow as part of the consumed fuel where the FFM100 properly accounts for momentary reverse flow.

Lastly, the FFM100 can be used for fluid types other than fuel (e.g., water, oil, etc.) by ordering the appropriate flow sender.

The FFM100 is NMEA 2000® certified so you can view any and all information anywhere on the vessel using a compatible NMEA 2000® display. The FFM100 is a key component of Maretron's N2KView® vessel monitoring and control system.

  • FFM100 converts a variety of flow senders (e.g., fuel, water, etc.) to NMEA 2000® Network Data
  • All flow senders ordered separately depending on application (i.e., single fuel flow sender for gas engine, dual fuel flow senders for diesel engine, water flow sender for sea water, etc.)
  • Fuel flow senders facilitates fuel consumption optimization for reduced fuel operating cost
  • Fuel flow senders use positive displacement metering technology for superior accuracy over other measurement technology such as turbine meters
  • Fuel flow senders do not require costly fuel conditioning components like flow straighteners and pulse dampers
  • Fuel flow senders implement true temperature compensation with precision built-in thermistors for increased accuracy
  • Fuel flow senders automatically detect reverse flow due to fluctuating pressure difference from injection pumps
  • Fuel flow senders pass particle sizes up to 70 micrometers (diesel fuel filters normally filter down to 2 micrometers to prevent clogging injectors)
  • Diesel Fuel Flow Monitoring
  • Gasoline/Petrol Fuel Flow Monitoring
  • Cooling Water Flow Monitoring
Diesel Engine

Gas Engines

The following accessories are available for the FFM100:

Fuel Flow Sensor 0.033-1.67 LPM (0.0088-0.440 GPM)

MSRP $395

Part Number: M1AR
Flow range : 2 to 100 LPH (0.53 to 26.4 GPH)

Fuel Flow Sensor 0.417-8.33 LPM (0.110-2.20 GPM)

MSRP $495

Part Number: M2AR
Flow range : 25 to 500 LPH (6.60 to 132 GPH)

Fuel Flow Sensor 3-25 LPM (0.79-6.6 GPM)

MSRP $695

Part Number: M4AR
Flow range : 180 to 1500 LPH (47.6 to 396 GPH)

Fuel Flow Sensor 8-70 LPM (2.11-18.5 GPM)

MSRP $895

Part Number: M8AR
Flow range : 480 to 4200 LPH (127 to 1110 GPH)

Fuel Flow Sensor 10-100 LPM (2.64-26.4 GPM)

MSRP $995

Part Number: M16AR
Flow range : 600 to 6000 LPH (158.5 to 1585 GPH)