UT309 series professional infrared thermometer can determine 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 rate of 250ms, high measurement accuracy, and multiple scanning modes, UT309 proves to be a necessary tool for engineers and technicians working in various fields such as electrical distribution inspection, HVACR maintenance, transportation equipment inspection, instrument repair, and many more. Features: 3m drop-proof, IP65 Large LED display with backlight MAX/MIN/AVG/DIF mode High/Low-temperature alarm with LED indication Lock measurement Data hold/auto power-off Specifications: Type: Infrared thermometer Technology: 10:1 Design: Laser class 2 Colour : Black/red Resolution: 0.1 °C Measurement range : -32 ... +450 °C Protection class: IP65 Type of battery: 1 x 9 V block Hold function: Yes Length: 189 mm Width : 55 mm Depth : 118 mm Display type: LCD Display Format: 32 x 29 mm Display illuminated: Yes Package Include: 1 X UT309A Professional Infrared Thermometer