Additional feature in uvr1611

[herbyak]

I am very happy using the UVR1611 Data Logger Pro since many years. It would be great if one additional feature could be implemented and that's the gas consumption. For many gas meters one can attach a reed contact and measure the impulses in the bootloader. One impulse equals to 0,01 m3. In the attached example the sum of all impulses are 2.741 equal to 27,41 m3 gas consumption.
To calculate m3 gas to kWh one has to use the following formula: kWh = m3(gas) * Zustandszahl * Brennwert (kWh/m3).
The so called Zustandszahl is always the same for a given home location and therefore has to be entered only one time taken from an invoice of the gas provider. The so called Brennwert can change from month to month and can also be taken from the local gas provider. For Brennwert one should have an input field that will override the previous value when entered at a given date.
With this information given one should have one additional field gas consumption in kWh.