DFM S7 and DFM D S7 – hardware tool for direct fuel consumption measurement and monitoring flow of liquids with 1.5 to 6 mm²/s kinematic viscosity, also used for recording engine operation time and fuel/liquid flow time. DFM S7 wireless fuel flow meters are used in vehicle telematics (GPS/ GLONASS vehicle tracking), online monitoring systems of stationary engines, boilers/heaters, and as an stand-alone solution for fuel consumption monitoring.

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