The Keycode for your Bluelab Connect device should be on a small silver label or sticker.
This will be located on the top of a Guardian Connect or pH Controller Connect (see images #1 and #2) or on the base of a Pro Controller (see image #3):
#1 and #2:
If the Key Code sticker is not present, please confirm the device label says “Connect” under the product name (as seen in the Guardian image above) and the label has an orange band at the bottom of it (as seen in the pH Controller and Pro Controller images above).
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