I'm not familiar with those stress tests, but the REAL question is the EOL of the sensor itself. The electrochemical-based CO sensors ONLY last for 5-8yrs due to sensor deterioration; from the NIST site, quoting "All sensors have a limited lifetime, which will vary between manufactures" (and they site the metal oxide as well as the electrochemical sensors immediately b4 this statement)[How Do Carbon Monoxide Detectors Work? | NIST]. So, what is the expected life of these sensors?--take the best case scenario, viz used in a residential environment in a temp controlled room (heated, cooled as needed thru the seasons): what is the EOL expectation? In an environment that is relatively clean for IAQ for years, with ideal, controlled power supply to the BME688, I would like to know the EOL for example, in use to detect, for example, the potentially toxic level of CO. Common residential CO detectors are electrochemical and they have an EOL of 5-8yrs. What is the equivalent for my proposed case with the BME688? Or are u suggesting that it would also be related to the requested sampling frequency of the master device? - If so, what are the failure modes for these metal oxide sensors? Thx
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