Download of SondeMonitor 6.2.8.7 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. SondeMonitor lies within Office Tools, more precisely Calculators.
The following versions: 6.2, 6.1 and 5.5 are the most frequently downloaded ones by the program users. This free program was originally produced by Sonic. SondeMonitor.exe is the frequent file name to indicate this program's installer. You can run SondeMonitor on Windows XP/Vista/7/8/10/11 32-bit.
From the developer:
SondeMonitor allows you to see the upper air temperature and humidity profiles in real time so that you can seek the out best convective activity levels and avoid those levels where the air mass is stable. The Sueve diagram (right) includes the dry and moist adiabat curves (green and blue lines) that allow stability to be inferred.
You may want to check out more software, such as CombiPlotter, which might be similar to SondeMonitor.