Features: HIGH ACCURACY: TH02A, non-contact infrared thermometer (not for human or animal), with sensitive sensor and advanced lens, has improved accuracy of temperature measurement by adjusting the emissivity(0.1-1.0) according to the material being measured. INSTANT TARGET MEASUREMENT: 12: 1 D:S(distance to spot ratio) allows to measure surface temperature of target at a long distance quickly, with a 0.5s response time, -50C~580C (-58F~1076F) measuring range, unit switchable as needed(℉ or ℃). ADDED FUNCTIONS: Backlit LCD display enables reading temperature even in the dark; data hold is convenient to query data; auto-off after 6s non-operation, energy-saving, extends battery life; beep sounds for alarm when measured temperature is beyond the value set-up. LIGHT WEIGHT POCKET SIZE: Light and portable thermometer, built with solid durable body comfortable to grip handle, is easy to carry, for outdoor or indoor use. WIDE APPLICATION: This thermometer is suitable for daily life or industrial field, like cooking, motor maintenance, home/commercial repairs, to measure the surface temperature of various objects precisely.