So not having a full grasp of the API website and so on i was wondering if there could be a this weeks best and worst function… Or you score 32 out of 3000. Its hard to say hay local elected official our air sucks if you cant say hay this is the data and thees city’s have better air then us.
Hello Worris,
based on which data are you taking this assumption?
As it is explain in our platform we are not currenlty displaying ppm (parts per milion).
Instead we are showing you the actual resistance our your sensor in KΩ, this is also known as RS. You can read more on your kit page as seen on the image above.
We are still not offering PPM because we can still not ensure a perfect calibration of our sensors we are working hard on offering a calibration solution.
Anyway this doesn’t mean you can not calculate PPM based on your kit’s data:
- Base on our own tests we consider 75KΩ to be a default R0 in our CO sensors.
- Concerning your last sensor RS was 641KΩ we can calculate ppm as RS/R0 which give us around 8.3 PPM which is not a bad value.
- Anyway this is based on assuming your sensor R0 and is not a trustable value.
So, this means that the data coming from your CO sensor do not make sense?
Not, really. Even though as you can see calculating PPM is a risky operation when your sensors are not calibrated the sensor is meant to offer you a tendency. Helping you understand how CO levels evolve on a week, day or month period.
Hope this helps you,
We are preparing an extended documentation concerning CO sensors.
Guillem.