Stating a range in notes

[KimBellingrath]

Which is preferred?

"TEMP RANGE: -10ºF to 90ºF"
or
"TEMP RANGE: -10 to 90ºF"

 

[TD2K]

I prefer to see the units on both numbers though I will admit, I ask myself the same question when I'm writing something similar in a report.

 

[ctopher]

The first one is preferred with celcius in parenthesis after it. Insert a space between the degree symbol and F for readability when reduced.