UNI-T UT302A UT302C UT302D Laser Infrared Non-Contact Industrial Digital Thermometer LCD Backlight Auto Power Off Data Hold  UT302 series is a professional non-contact infrared thermometer that can determine the temperature by testing the infrared energy on the surface. It is used for fast and safe fault detections and maintenance of electric instrument and equipment, engines, motors, and HVAC refrigeration system.        Fetures:  1. MAX/MIN/AVG/DIF display  2. Tripod hole and lock measurement function for continuous measurement (SCAN mode)  3. °/° options  4. Optional (on/off) laser pointer  5. LCD backlight  6. Auto power off, data hold  7. Adjustable emissivity  8. USB interface           Specifications     Range           Model     UT302A     UT302C     UT302D           TemperatureRange     -32°C& 65374;450°C     -32°C& 65374;650°C     -32°C& 65374;1050°C           -26°F& 65374;842°F     -26°F& 65374;1202°F     -26°F& 65374;1922°F           Accuracy     ±1.8°Cor±1.8%           Repeatability     ±0.5°Cor±0.5%           Resolution     0.1°C/0.1°F           DistancetoSpotSize     20:01           ResponseTime     250ms(95%ofreading)           Emissivity     0.10& 65374;1.