Accuracy? 3 yes, 2 no!

In my new fridge and freezer I am against 3 different locations to measure the temperature.
To determine the "relative accuracy", I once put all tangible thermometer together.
Result:
My 3 old and less inexpensive thermometer (digital and analog) varied at a temperature of about 26 degrees to +/- 0.5 degrees.

+ Of the 5 here newly purchased thermometers 3 piece also showed at 26 +/- 0.5 degrees.
- One showed 2 degrees less and 2 degrees of more.

Conclusion:
5 thermometer for 10 EUR, as you can not complain.
3 are obviously relatively accurate, that's enough from me.
The less precise is known by different colors.