What is the error code 3108 on a testo 350 emissions analyzer?

Error code 3108 on a Testo 350 emissions analyzer typically indicates a problem with the internal temperature sensor, which can affect the accuracy of the measurements. This error may arise due to sensor malfunction, wiring issues, or calibration problems. To resolve it, check the sensor connections and perform a calibration if necessary. If the issue persists, contacting Testo support for further assistance is advisable.