Quote Originally Posted by Kaorte View Post
a 15* difference is a bit much though, don't you think?
depending on how close you hold it will affect the reading too. the closer you hold it the finer the surface area it reads from if i hold it 1/2 inch from the substrate compared to an inch i can usualy see 1-2*f difference as well. 15*F might be a little bit extreme but i could be wrong could be 100% normal. i dont get that huge of a difference. but its at lease 8*f difference for me