Hi,

I am working on a project which aims to find out methodology for checking air quality data measured by low-cost electrochemical sensor automatically and manually.

I know one way of checking it is comparing the data with the standard air quality measuring equipment installed by the governing bodies. But if there is no standard equipment present nearby where the low-cost sensors are installed, how should I check if there is any calibration fault with the sensor and data generated are not good enough?

Thanks