I have two identical boards now, along with my TemTop portable unit, and the CO2 is quite close (< 1% difference usually), and PM2.5 readings are more like 5-10

I have two identical boards now, along with my TemTop portable unit, and the CO2 is quite close (< 1% difference usually), and PM2.5 readings are more like 5-10% different. The temperature is the biggest outlier, but I need to figure out a better placement for the temperature sensor to get that issue fixed.