DFM 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.
Core features
- 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 additional intrinsic safety barrier
- no cables – improved resistance to vandalism or accidental damage
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