You should update the software on your Tru-Test device regularly to take advantage of the latest features and improvements. Updating the software is done using Data Link PC software. This can be downloaded from www.tru-test.com
To update the device software:
Connect the device to your PC using the cable supplied.
Launch Data Link on your PC.
Click Tools and Updates.
Tick Check for Updates Automatically, then click Check for Updates and follow the prompts:
Note: When updating device software, the data on your device will remain intact. However, we strongly recommend transferring important data onto your PC first.
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Here is a video showing how to update the device software on a 5000 indicator. The process is the same for all other devices.