Software Downloads

Here you'll find software for the LI-550 TriSonica Mini.

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Embedded Firmware

NEW! LI-550 Firmware v3.0.0


Firmware updater for the LI-550 TriSonica Mini Wind and Weather Sensor. Read the release notes for a summary of new features and the update instructions to load the firmware.

Software Drivers

Some Windows® PCs do not include the software drivers that are required to connect over the USB connection. If you are unable to connect, download the file called CP210x Universal Windows Driver.

Interface Software

TriSonica GUI


Graphical interface to view data and configure the LI-550 TriSonica Mini and the LI-560 TriSonica Sphere. Compatible with Windows 7 and above, 32-bit operating systems. The LI-570 Data Logger is not supported by the TriSonica GUI at this time.