4 ms·
I wonder how long these last. I have a couple of MH-Z19 sensors (from a reliable source) and they drift (showing lower readings) by more than 50% after a couple
by alwayslikethis 4y ago
I wonder how long these last. I have a couple of MH-Z19 sensors (from a reliable source) and they drift (showing lower readings) by more than 50% after a couple of weeks/months without calibration. If calibration is to compensate for the debris stuck in the sensor or declining source brightness, one must wonder how long the sensors would remain accurate for. Anyone knows enough to enlighten me on this?
- ahaucnx 4y agoWe usually use the SenseAir S8 NDIR sensors that have a very good quality but also have a couple of MH-Z19 sensors in monitors that run since a couple of years without issues. We ran a comparison between the two and the S8 and MH-Z19 pretty much delivers the same values (with ABS turned on). We use the automatic baseline calibration in pretty much all our installations so we do not have experience on long term drifts.