Sometimes a thermometer is not enough to give you a visual representation of how warm something is. What you need is a handheld thermal imaging device to give you that "predator" type vision from the movies.
The Fluke Thermal Imager is a handheld device which allows you to see the heat generated from a section of an image viewed through a camera type device. What you do is point towards the object you want to observe and then look at the single screen which shows the actual picture and an overlay on top of the heat generated from various items in the picture.
The Fluke Thermal Imager costs $7500 and are aimed towards safety type users who need to record temperatures and look for potential faults in wiring etc...
Via: Technabob