The Dewalt DTC Imaging Thermometer Kit is a good entry level professional grade imager that lacks some of the features and refinement of other imagers but costs much less. The temperature range is 14F to 480F giving it good range for both residential and commercial applications. The imager also has included a 2GB SD card for storing images and is Prime eligible. While Dewalt is not known for their thermal imaging cameras or technology this system does a nice job of having many features and being durable without the much larger price tag of a FLIR or similar system. This system is geared to the price conscious professional.