The Ecowitt WH41 air quality sensor has some weird behaviour when the battery is low.
The battery level is reported as an integer between 1-5. When the battery level hits 1, the PM2.5 reading suddenly jumps up to 1000 ug/m3 and stays there until the battery is charged.
This is a fault with the sensor itself, but it would be cool if we could work around it in the exporter.
If the battery level = 1 and the pm25 reading = 1000 then the reading should be dropped. It's better to provide no data than wrong data.
The Ecowitt WH41 air quality sensor has some weird behaviour when the battery is low.
The battery level is reported as an integer between 1-5. When the battery level hits 1, the PM2.5 reading suddenly jumps up to 1000 ug/m3 and stays there until the battery is charged.
This is a fault with the sensor itself, but it would be cool if we could work around it in the exporter.
If the battery level = 1 and the pm25 reading = 1000 then the reading should be dropped. It's better to provide no data than wrong data.