Got on of these several years ago and find it useful. In the paper with a coupon today at HarborFreight for $28 and without, on sale for $40.

http://www.harborfreight.com/non-con...ter-96451.html

Great uses for across the tire temperatures, for helping to adjust camber at the track. Not a totally acurate tire temperature which requires a probe type, but it works for an approximation and to measure across the surface for camber.

How hot are those rotors?

How hot is the pavement or other surface? Leather car seat in the sun with open windows, 160 degrees.

At home, does the AC work, or the refrigeration coil in the 'frig?