What does the red flashing LED on the CO2 logger mean?

Most data loggers are fitted with a red flashing LED.

The red flashing LED is part of the logger's alarm feature. If it starts to flash, this means that the upper ppm level that has been chosen during set up in the Tinytag Explorer software has been reached. The flashing LED also indicates if the mains power supply has been interrupted.

The red LED is not a warning of a low battery.

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