Techno Line WS 7012 - For the refrigerator OK

I ordered this Themometer to see if my fridge My tasty food cools a good boy. However, the first day allowed the thermometer take in the living room next to a room thermometer place. Less from Gasstfreundlichkeit, but more to see whether the two agree in temperature. Behold, sometimes they were there. But mostly the WS was 7012 times up to 1.2 degrees below, times to the same value it. Not so great.
With the knowledge I now have it hanging in my refrigerator for several weeks. It shows me 2.9 to 5, at something.

If you want to have the exact temperature, looking better another thermometer. But I just know that my refrigerator works well and cooled to an average of 4.5 ° C Estimation.