Infrared thermometer DT320 Measuring range -50 ° C to 320 ° C (-58 ° F to 608 ° F) measurement accuracy ± 2or2 ℃ Measure the distance ratio 8: 1 Emissivity 0.95 Response time and response value are long 500ms & (8-14) um Repeatability ± 1% or ± 1 ℃ Resolution 0.1 ° C or 0.1 ° F Storage ambient temperature -20-50 ° C (-4122 ° F) Operating temperature 0-50 ° C (32-122 ° F) Fahrenheit / Celsius conversion √ Data retention function √ Laser target display selection function √ Backlight display selection function √ Automatic shutdown function √ Low power display function √ General characteristics powered by 9 battery (no battery due to shipping policy) Product color gray