UT309A Professional Infrared Thermometer can determine the surface temperature through the energy radiated by the target surface. It is designed to meet some of the highest protection ratings in UNI-T’s product line, IP65 and 3m drop proof. With a rapid response time of 250ms, high measurement accuracy, and multiple scanning modes, the UT309A proves to be a necessary tool for engineers and technicians working in various fields such as electrical distribution inspection, HVACR maintenance, and many more.