The UT309A is a professional infrared thermometer that can determine surface temperature through measuring infrared energy radiated by the target surface. It is designed to meet one of the highest protection ratings in UNI-T’s product line, with IP65 and 3m drop proof. With a rapid response rate of 250ms, high measuring accuracy and multiple scanning modes, the UT309 series proves to be a necessary tool for engineers and technicians working in various fields such as electrical distribution inspection, HVAC maintenance, transportation equipment inspection and instrument repair etc.