A vs B being displayed on map

[dwhitemv (Doug White)]

Have you tried the maintenance procedure on the sensor to address the discrepancy?

Sensor Maintenance

Once your sensor has been in service at the installation location, it becomes exposed to foreign contaminants. We expect the sensor to contact airborne particulate matter. But undesirable contaminants may impede the function of the sensor. We do not recommend a regular cleaning schedule for PurpleAir sensors, and no preventive maintenance is required. If one of the laser counters is not reporting as expected, is downgraded, reporting high, not working, or spikes erratically, then it is possible…