Did you set the correct log format (on the far righ to fthe connect button is indicated initially 'Default device' - you have to set that to Holux GR-245). Holux changed their format between devices in that in altitude has become speed (in m/s) and speed became altitude.
If that does not help you can share one of your logs with me so that I can have a look.
Did you set the correct log
Did you set the correct log format (on the far righ to fthe connect button is indicated initially 'Default device' - you have to set that to Holux GR-245). Holux changed their format between devices in that in altitude has become speed (in m/s) and speed became altitude.
If that does not help you can share one of your logs with me so that I can have a look.