Infrared thermometer DT8280 Measuring range -50 ° C to 280 ° C (-58 ° F to 536 ° F) Temperature accuracy ± 2 or 2 ° C 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 display function √ General characteristics powered by 9 volts Product color Yellow + gray Packaging amount per box 20PCS Carton size 40.5 * 33.5 * 23.5 cm Gross weight of outer box 6kg