Bad outdoor sensor data!

[Jasmine_Bootman (J_Bootman)]

I am not sure if this is applicable, but if an old sensor was switched out with another one, see this post below (posted by Adrian on March 9th), it may address some of your questions.

New version of Plantower PMS5003

We recently found that there is a new design of the Plantower device that we were not aware of and have been supplied with lately. It has all the same markings on the outside but a new PCB on the inside. We identified a way to id these new devices in the field both from the PA firmware (with a future update) or directly in the data they provide now. These devices use a new MCU (microcontroller) and may be a result of a new design originating from hardware availability and COVID supply line issu…