Product review (4 stars): This is an excellent tool - exactly what I was looking for (although ...
This is an excellent tool - exactly what I was looking for (although Fahrenheit readout would be nice - - the simple conversion is:  Celsius x 2 minus 10% and add 32, so 10 Celsius = 10x2 is 20, then subtract 10% (20-2)=18, and Add 32 ... 50 degrees F = 10 degrees C.  It's easier than 9/5*C+32 for mental math.  I have found it tends to read about 1.7 degrees high (C).  I referenced it to 4 other thermometers at temperatures ranging from about 0 to 18 C.  It was pretty consistent across the range.

If it was more accurate and had a Fahrenheit readout, it would have gotten 5 stars.