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If two copies of Logger Pro, Logger Lite, or LabQuest Emulator are running at the same time, only one can talk to a given device. Check to see if another program is already connected to the device.Use a USB cable that you know is good because it works with a different device. Make sure that one end of the cable is completely plugged in to the interface and the other end is all the way into the computer. It could be that the device really is not connected. For a summary of which versions of Logger Pro work with the your OS, see Please note that not all computer operating systems work with the latest version of Logger Pro. What is the minimum version of Logger Pro and Logger Lite that can be used with my hardware?
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The free upgrade from previous version of Logger Pro 3 is available at.
#Logger pro spectrometer update
If you have a version of Logger Pro older than 3.8.5, you may need to update in order to get the latest drivers. The exact version number will in the About screen. To find out, open Logger Pro and choose “About Logger Pro“.
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