Looking for software/data - Airflow Lufttechnik Digital Barometer DB2

[nfmax]

I have a battery powered digital barometer DB2 from Airflow GmbH. This has a serial output for data logging, but the output format is proprietary/undocumented. Unfortunately, I no longer have the original logging software, which was called 'MWelk' If anyone out there has one of these instruments, and a copy of the software (or documentation on the data format) they could provide me with I would be most grateful

(prompted because the weather forecast for tomorrow shows the pressure here exceeding 1050 mBar for the first time since 1957!)