Thermal Inspection Cameras, or thermal imagers, are cameras with thermal sensors. They are useful tool for electronics, construction, home inspection, car/airplane maintenance and repair, air conditioners and heaters. 

The most important factors to consider when choosing a thermal imaging camera are:
  • Thermal image resolution. Higher resolution, better the thermal images. The minimal resolution of 60x60 pixel is required to get a acceptable image. TH-3 is 60x60, HT-18 is 220x160 and HT-19 is 320x240. 
  • Temperature range​
There are two types of thermal imaging cameras. One is handheld with trigger like gun shape (Model HT-02, HT-04D, HT-04, HT-18 and HT-19), and another is palm-held pocket size like a smartphone (HT-A1 and HT-A2). The table below will help you choose a right thermal camera for your applications. A general rule is that, higher resolution, better image quality and easier for your job. 
Resolution and image quality: higher resolution, more details, see farther, more accurate temperature readings