After six months it turns on whenever it wants, displaying random indications on the screen. Pure unreliable Chinese

I bought it for €17.67 from abroad.
I preferred the model based on the comments here on Skroutz, due to its simplicity of use, the type of batteries (2 x AAA 1.5V), the buzzer, the automatic shut-off, and its size for simple measurements.
Some surfaces with conductivity, electrical voltage (volt AC or DC) due to oxidation, and a metal-plated surface create uncertain moments. In the Uni-T UT123D, there is a "click" confirmation sound or "relay" sound, which is a small detail but important for me.
I will come back for the rest of its functions...

Many times it gets stuck in switching measurements and takes a long time to respond, especially in resistance measurement with buzzer. That is, when I remove the terminals, it forgets to sound or show the measurement. Personally, I restart it and sometimes I even remove the batteries to get it unstuck. This problem has been mentioned before in this specific series. However, it is small in size and very convenient (fits in the pocket).

edit 25/4/23: I replaced it with the same model because recently it was constantly getting stuck. It hasn't gotten stuck at all so far.