4 ms·
You can set the calibration mode to manual using either the serial port or a pin on the mh-z19. Mine is configured to manual and after a few months it still rea
by ysleepy 5y ago
You can set the calibration mode to manual using either the serial port or a pin on the mh-z19. Mine is configured to manual and after a few months it still reads reasonable values for outside air.
But yes, the default is autocalibration. But honestly, the difference isn't that bad, it's probably like 100ppm offset for stale room air from outside, and 100 doesn't make a huge difference when you are trying to measure around 1500.