Minn. R. 4626.0555
TEMPERATURE MEASURING DEVICES; FOOD. 4-203.11
A. Food temperature measuring devices that are scaled only in Celsius or dually scaled in Celsius and Fahrenheit must be accurate to plus or minus 1 degree C in the intended range of use. P2 B. Food temperature measuring devices that are scaled only in Fahrenheit must be accurate to plus or minus 2 degrees F in the intended range of use. P2