You can get temp guns much cheaper....
http://tempgun.com
http://www.amazon.com/gp/product/B00...ls_o04_s00_i00
- - - Updated - - -
Keep in mind your body temp 98.6, if you are using your hand a to judge the temp it is going to naturally feel cooler.
- - - Updated - - -
Do you have any references to back this up?