Bought 2 identical monitors 1 month apart. I started to set up the first one, with each ate, the readings of the sensors changed a lot.
I had version 3. x after the first ate, the PM sensor on the first device stopped working, I scored and began to ate further, ate 4.1.8_0256 is not downloaded immediately, but after N attempts (3-5 attempts), and for the new device it also does not ated the first time. In general, the devices stand side by side and show completely different readings. As I remembSee full review