Fuel Flow Meter

DFM Fuel Flow meters are designed for accurate real time fuel consumption measurement in vehicles, trucks, farming equipment, and stationary machines.  Also used for monitoring machine operation hours in different engine working modes.

Our high-quality flow meters are easy to install and provide precise and reliable data on fuel usage.  Therefore, deterring fuel theft and allowing you to optimise your fleet’s fuel efficiency and reduce costs.

The DFM fuel flow meter measures real time fuel flow and total fuel consumption in vehicle tanks and stationary units.

Suitable for a wide range of Fuels

Firstly, it is compatible with a wide range of fuels. Such as diesel, petrol, and biodiesel.  In addition, it operates with other liquid fuels and mineral oils with kinematic viscosity of 1.5 to 6mm²/s.   This product has one fuel measurement chamber.  Therefore, it is intended for small to medium engines with an indirect injection fuel system.

For two chamber system, for slightly heavier diesel machinery view the DFM D Diesel Fuel Flow Meter.  For Boats, Mining Machinery and items with a flow rate of 4000 L/per hour, view the DFM Marine Model.

High Measurement of Flow Rate

Through its advanced technology, the DFM Fuel Flow Meter measures flow rates up to 200 litres per hour with outstanding accuracy of +/-1%.

Compact and User-friendly design

Secondly, the DFM features an easy-to-read LCD Screen.  It displays real time fuel flow, total fuel consumption and other important data.  Another feature is its variety of alarm functions.  This allows you to monitor fuel consumption and be alerted of any detections in any irregularities or anomalies.

Integrates with other vehicle management systems or on its own

Thirdly, the DFM can integrate with other vehicle management systems.  Such as GPS or telematics systems.  Therefore, providing extra insight into your fleet’s performance. Allowing you to make data driven decisions to improve efficiency and reduce costs.

Or it can operate on its own. Purely as a solution for fuel consumption monitoring.

A solution for the following tasks

  • Fuel consumption control
  • Fuel consumption rationing
  • Fuel consumption optimisation and real time monitoring
  • Monitoring fuel flow
  • Engine fuel consumption testing


Other Exciting features of this fuel flow meter includes:

  • Built on IoT Burger Technology and data is registered in digital counters in internal memory
  • In addition, it can be configured into Bluetooth with optional S6 BT Adaptor
  • Embedded Battery which ensures counters are registering data even if external power is turned off. Once power supply is back data is automatically sent to telematics unit
  • As well as a Signal cable that is resistant to breaks and weather changes
  • Also a Tampering Counter which registers attempts by a third party to tamper with the flow meter by generating artificial fuel consumption and it will send an alarm to telematics unit
  • Interference Counter protects DFM from magnetic field impact which aimed at stopping fuel consumption measurement.
  • Mud Filter which protects the engine and sensor against mud and water
  • Choice of one or two chambers – the two chamber model allow back flow measurement


Different Models for Different Applications – the choice is yours.

Differential Fuel Flow Meter DFM
Differential Fuel Flow Meter DFM D
  • Designed for diesel fuel consumption measurement in the fuel line of vehicles and installations.
  • Can be used with vehicle tracking system and fuel monitoring system installed on cars with modern EURO (TIER) 3/4/5 diesel engines
  • Used to measure the fuel consumption of vehicles where it isn’t possible to apply the single chamber diesel meter and the installation scheme with the return fuel line ringing
Autonomous Fuel Flow Meter DFM
Autonomous Fuel Flow Counter DFM
  • Used to create a fleet fuel consumption accounting system
  • This model has no buttons – switching on the LCD display using special magnetic key – making fuel consumption visually available to a responsible person in charge of entering data onto a report.
  • Powered by a built in battery designed to operate for more than 24 months of continuous operation
  • Features unique tampering and intervention protection functions.
  • Making it ideal in companies where chances of vandalism and untrustworthy employees is high.


Fuel Flow Meter with Pulse Interface
Fuel Flow Meter with Pulse interface
  • Designed for fuel consumption measurement autonomously or part of fuel monitoring and vehicle tracking system.
  • Fuel consumption is displayed on the LCD Display and in the pulse interface.
  • Can be used to create a fuel consumption accounting system by using the autonomous fuel counter.
  • The metering unit with an output can allow data to be automatically collected and stored in a centralised database.


Marine Fuel Flow Meter DFM
Marine Fuel Flow Meter – ideal for machinery with large engines
  • Measures up to 4000 Litres per hour
  • Designed for real time monitoring of fuel consumption and operating time of engines in boats, mining machinery, diesel generators and other high power machinery


Fuel Consumption and Operating Time Counters

Fuel Consumption

  • Instant Fuel Consumption
  • Hourly Fuel Consumption in “Forward” Line
  • Hourly Fuel Consumption in “Return” Line
  • Fuel Consumption in Litres, Idling, Optimal, Overload & Negative


Engine operating time

  • Total operating time, hours, idling, optimal, overload, negative
  • Supply chamber operating time
  • Return chamber total operating time
  • Operating time of Supply and Return chambers in each mode of engine operation



  • Engine operating time in “Tampering” mode, h
  • Engine operating time in “Interference” mode, h
  • Current engine operation mode as per fuel consumption rate
  • Fuel temperature
  • Temperature correction status
  • Correction coefficient value
  • Battery charge


Information on the Fuel Flow Meter Display

The DFM with display provides fuel consumption measurement without data transfer to a server.  This solution is ideal for small stationary units or small fleets operating within an enclosed area.

The information it displays on the screen includes:

  • Total Fuel Consumption
  • Engine Operation Time – Idle, Optimal, Overload
  • Fuel Consumption in Tampering Mode
  • Interference Time
  • Instant Fuel Consumption
  • Maximum Battery Charge displayed as a percentage
  • Temperature in the measuring chamber
  • Firmware Version


How reliable is the DFM?

Installed into the fuel line of the vehicle. It promptly detects fuel theft and vandalism.

  • Firstly, the strong metal body of DFM ensures reliable protection from dust and dirt.  Also, it acts against attempts to disable the flowmeter.
  • Protection from influence of strong magnetic field. However, in the case of electromagnetic interference, the flow meter records duration of action to special “Interference” time Counter.
  • Tampering with air flow is useless! If fuel consumption rate is higher than usual, DFM registers the tampering time to special “Tampering” counter.
  • High battery life. DFM  fuel flowmeters can operate from the built-in battery for up to three years. When disconnected from on-board power network, DFM  still records data and saves it in its own memory.
  • Sealing of the flowmeter and fuel system elements. Therefore, not possible to intervene to places of flow meter installation without damaging the seals.


For model information and pricing, contact us.

Specifications of Fuel Flow Meter

Connecting ThreadM14 x 1.5
Nominal Pressure2 bar
MAX Pressure25 bar
Supply Voltage10-45 V
Over Voltage<100 V
Current Consumption ma (12V/24V)25/50 mA
Operating Temperature (without/with display)-40°+85°
Ingress Protection RatingIP54
Relative accuracy error per chamberNot more than 1%


ModelNominal BoreStart Up Flow Rate litres/hrMIN Flow Rate litres/hrMAX Flow Rate litres/hrRecalibration Interval litres
DFM 5060.5150100,000
DFM 10060.52100100,000
DFM 250825250250,000
DFM 50012510500500,000


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