Professional digital LCD display infrared thermometer for measuring the surface temperature of an object. Features: Non-contact Measurement: the thermometer can measure various hot, hazardous or hard-to-reach objects without contact, convenient to measure and safe to use. Measurement Range: -50~400/600 (-58~752/1112) wide measuring range with Celsius(C) and Fahrenheit(F) optional temperature units. Low Consumption & Auto-off: just powered by 2pcs 1.5V AAA batteries(NOT included), and the tester will automatic shutdown if there is no operation within 30 seconds, low battery indication on the upper right corner. Data Reading: HD colored LCD screen with backlit display, combine with data hold function, which allow you to check the data clearly. Other Features: 0.1~1.0 adjustable emissivity(preset at 0.95), high and low temperature alarm settable, laser ON/OFF settable, etc. Wide Applications: can be used for the non-contact temperature measurement of the automobile engine/air outlet, air conditioning, oven food, etc. Specifications: Model: IR03A / IR03B (Optional) IR03A: Infrared Measurement Range: -50~400 (-58~752) Accuracy: -50~0(-58~32): 3; 0~400(32~752): (1.5% of reading+2/4) IR03B: Infrared Measurement Range: -50~600 (-58~1112) Accuracy: -50~0(-58~32): 3; 0~600(32~1112): (1.5% of reading+2/4) Material: ABS Emissivity: 0.1~1.0 Field of View(D:S Ratio): 12:1 Spectral Response: 8~14 Laser Pointer Class: Class 2 Laser Pointer Output: