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Data missing? Scan history QR codes

A Logmore QR code is capable of holding a lot of data, but long, data-intensive use may fill a QR code more often than it is scanned.

The data is not lost when a QR code is filled, but instead the old, "full" QR codes can be found from the historical QR codes saved on the QR logger.

Quick guide

Click twice the Multi-function button of the logger. The screen updates, and "History #01" is shown on the screen. Scan the history QR code. If a yellow notification on history codes shows up in the scanner, click once the Multi-function button to access the next history screen, "History #02". Scan the code! Continue until all history QR codes are scanned.

History QR code notification

After scanning the QR code for the first time, the following notification will be shown in the scanner, if history QR codes have been produced.

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Accessing historical QR codes

To browse the historical QR codes, enter the history mode.

Click the

twice to access the old QR codes in the normal operation view of the logger.

Make sure "History #01" is shown on the screen and scan the QR code.

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The QR logger keeps logging even outside the "normal operation view". You can browse the historical QRs without worrying about losing data.

You can recognize the normal operation view from the QR code and the current temperature shown on the logger screen. History screens have the text "History #X" where the temperature value would be shown.

Browsing the history view

When you have accessed the history view, simply clicking the

once shows the next history page.

To return to the normal operation view, just long press (over 2 seconds) on any history screen. The logger resumes normal operation view after 3 minutes of inactivity in the history view.

History end screen

Once you've browsed through all the historical QR codes on your QR logger, you'll run into the history end screen β€œEnd of history. Returning live.”.

Any click or press of the

returns you to the normal operation view, where you can repeat the process described on this page to access the history QR codes again as needed.