If you have never used a IR scanner before , you will be amazed at how useful they are.
Just aim and press the button. In seconds you can scan floor temperatures, track each radiant loop , check wall and ceiling insulation ,  and hundreds of other things. Picture
This American made unit is accurate, simple and reliable. The price of $159 includes case and  UPS shipping anywhere in the USA.
Specifications:  ProTemp-1

Temp range:            0-600 F.
Resolution :             1 deg.
Accuracy :              2 % of reading
Repeatability:       0.5 %
Target Size:            3:1 optics with 1 inch Min
Wavelength:            8 to 14 Micron
Response time:        1 second