The minimum-maximum temperature function is very useful.
This way, you can check that the refrigerator is working properly for both the fridge and freezer compartments. It seems quite accurate to me, but let's not split hairs...
I also used it as a room thermometer...
Satisfied!

+ Very accurate for its price (comparison with a certified laboratory precision thermometer): Measurement error +0.4 at room temperature, -0.3 at refrigerator storage temperature

+ Small size

+ Waterproof battery compartment

+ Max/min readings

+ Suitable for professional use in food, etc. (EN13485 certification)

- Measures shell temperature and not air temperature, and takes a while to reach the correct temperature. However, note that thermometers that actually measure air temperature cost more than 10 times as much!

Excellent! Very accurate! Elegant. Just what you need to monitor fluctuations in cooling chambers and refrigerators as it shows minimum and maximum. You can manually reset it at any time.

Perfect in every aspect. Accurate measurements. Placed inside a freezer, it has had absolutely no problem for 1 month now. So far so good. Time will tell about its durability at temperatures of -20 Celsius.

Quite a good thermostat. However, it always shows exactly 2 degrees above the actual temperature. Okay, you get used to it and adjust accordingly

The ideal use of it is as you see in the photo for inside a transparent drawer. I have checked its measurements and they are fine.

I have been using it for over a year for cooling and freezing. Battery replacement in about a year. Accurate temperature measurement.

The most reliable digital thermometer, works perfectly and doesn't break after a month like the others. I have triple-checked it and compared it to analog thermometers in both refrigerators and freezers, and it always falls within range. Don't buy the cheap ones for 2-3 euros, I had bought 5-6 of them and they all broke!

I have bought two (purchased in early March 2023), one for refrigeration and one for freezing. One of the two initially had some tricks, such as the fact that its screen had become blurry but then returned to normal. Perhaps the rubber o-ring of the battery seal was the issue. On the very positive side, it has the memory of the minimum-maximum temperature. This way, someone can understand how their refrigerator works. It comes with a support frame that has double-sided tape for mounting on the walls of the refrigerator, plus the folding support on the back for someone who doesn't want to stick it inside the refrigerator.

... It is available in the Greek market, without the user manual being translated into Greek.

Excellent in functionality and very useful. With the minimum - maximum temperature memory it has, it revealed to me that my refrigerator has a problem with freezing. On days when I don't use it (absence from home), the freezing fluctuates from -22C to +4C. Without this, I would have never found out.

Reliable and very useful. Its quality is good