Discover the best Thermal Imagers in Best Sellers. Find the top 100 most popular items in Amazon Industrial & Scientific Best Sellers. Handheld 35200 Pixels Thermal Imaging Camera,Infrared Thermometer with 3.2" Color Display Screen 4.5 out of 5 stars 172. $398.00 #8. Thermal Imager Kit, Professional LCD Display Screen Handheld Infrared