As with all technology, the AirBeam2 does have some limitations:
- The AirBeam2 does not measure gases like ozone or nitrogen dioxide
- The AirBeam2 does not measure outdoor temperature or relative humidity. The temperature and relative humidity sensors are inside the AirBeam2, so the temperature and relative humidity reported in the AirCasting app are the temperature and relative humidity inside the sensor. These measurements are not for the temperature and relative humidity outside of the sensor.
- The AirBeam2 data viewing app, AirCasting, does not work on the iOS operating system (e.g., iPhone or iPad). The AirCasting app only works on the Android operating system.
- According to evaluations by experts, the AirBeam2 does not accurately measure the PM10 size category. You can read more about the comparison of the AirBeam2 to regulatory measurements here: http://www.aqmd.gov/aq-spec/sensordetail/habitatmap-airbeam2.