Technoton DFM S7 Wireless Fuel Flow Meter


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Technoton DFM S7 Wireless Fuel Flow Meter

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.

The flow meters are based on S7 Technology, which ensures wireless data transfer via Bluetooth 4.X (Bluetooth Low Energy) to several devices using BLE-radio. In other words, the flow meters are operated in “advertising” mode – data is sent simultaneously to telematics units and GPS trackers, Bluetooth-displays, smartphones and tablets.

Features & Benefits:

  • operation in BLE-radio mode: data is sent to several Receivers at the same time
  • in-built battery – fuel flow sensor works without external power supply
  • very low power consumption allows autonomous operation of flowmeter for 5 years
  • explosion and fire safety without an additional intrinsic safety barrier
  • no cables – improved resistance to vandalism or accidental damage
Max. Pressure25 bar
InterfaceBluetooth 4.X
Tx Power+4 dBm
Maximum distance between fuel flowmeter and receiving device15 m (if there are metal bulkheads at the installation site)
50 m (when installed in line-of-sight)
Battery Lifenot less than 5 years
Operating Temperature-40 … +85 °C
Ingress Protection Rating (IP Сode)IP54


Technoton DFM S7 Wireless Fuel Flow Meter

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