Operators and employees of gas stations can now see in real time how fuel flows inside the station and control the refueling process taking into account temperature and density. At the same time, on the display of the dispenser, our clients will see the cost of one liter and one kilogram of gas, as well as the total amount to be paid. The rest of the data on the fuel state (density, temperature, and weight in kilograms) are in the counting unit of the filling station and, if necessary, are easily obtained by the operator.