Specification:Measuring range: - 50 ~ 350 (-58 ~ 662 ) Temperature measuring accuracy: 2 or 2 Measuring distance ratio: 16:1Emissivity: 0.1 to 1.0Response time and response value: 500ms & (8-14) umRepeatability: 1% or 1 Resolution: 0.1 or 0.1 Storage temperature: - 20 - 50 (- 4 -122 ) Operating temperature: 0-50 (32-122 )Measurement maximum: YesF/c conversion: YesMeasurement data storage function: YesPower supply: 2 * AAA1.5V alkaline battery (NOT included) Features: Exquisite craft and compact size, easy to carry. Quick and accurate measurement, no interval time. High safety, IR infrared receiving technology, radiation. HD display & memory check: HD high-definition screen, data storage function, historical measurement data can be tracked. Fahrenheit unit () and Celsius unit () can be converted.