The Foobot device is not made for being plugged and unplugged in too short a time interval.
Indeed, when Foobot is unplugged and plugged in again, it resets its heating and calibration process. Thus, within the first hour there’s too little data receive a realistic feedback about your air quality. Please wait at least 3 hours to get correct data.
It is very important for Foobot to run 6 consecutive days during the initial set up process.