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eti fridge thermometer
on 29 January 2011
Bought two of these , both disagree with each other on temperature in exactly the same place.
So i Verified readings with a calibrated fluke-meter both were out by up to 1-3 c.
Basically be careful how much you trust the reading you see on these,if you have to answer to environmental health.
If a device is displaying information,surely it's vital what you are reading is actually for real