Best cheap battery-powered indoor temperature/humidity sensors?

Hardware
22

In my case I have bad experience with Aqara Weather, for example in this moment I have one in outdoor and says that the temperature is 7.5c however the real temperature is 5.5c This summer aqara said that the temperature was 37c and the real temperature was 40c,

There are others most precise?

23

I use these but there is a delay (approx 3 min max) and its not local. Would prefer a good local solution