The MODE button is used for three main functions:

  1. press the "Mode" button ONCE for checking how many days the monitor has measured Radon since the last time it was turned on/reset;

  2. press the "Mode" button TWICE for gathering the 4-digit code you need in order to generate a report.

  3. use the "Mode" button to turn off the screen: you can follow the complete procedure here.

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