I just setup my I-9PSL this morning. CO2 sensor initially reported 10,000.
Set CO2 calibration period to 1 day, put it in outside air and pressed the calibrate button in Home Assistant.
After about 2 hours, CO2 sensor still reports 10,000. Other sensors appear to be functional.
Is this normal? Will it take 24 hours before it reports anything other than exactly 10,000?