Not bad, but not super-accurate ..

I've only purchased the product TFA 30.5005. That was me but a bit too small and I wanted for the kitchen and bathroom and also a device. So I ordered this twice for almost the same price. It's actually a little larger and thus easier to read.

Now for the values:

I have all three nebeneinader asked:

TFA 30.5005: 27 ° C, 58% air humidity
Moxx: 27.6 ° C, 53% humidity
Moxx: 27.9 ° C, 55% Lufteuchtigkeit

A deviation of 4% points in Lufteuchtigkeit was normal. Well that is when two devices could 8% points difference give (4 points lower and 4 points above).

Well, but that you can still live. The device responds just like the other device of TFA very quickly to changes.

A star I prefer even from since with me no German instruction was placed. Only Spanish, Italian and Dutch. In addition, because of the inaccuracy.