1PRETTY ACCURATE-The Distance to Spot Ratio is 12:1, meaning the it can accurately measure targets at greater distances compared to most other IR Thermometers.French HTU20 temperature & Humidity sensor and laser head are used to sense the ambient temperat 2WIDE RANGE OF APPLICATIONS-For noncontact surface temperature measurement,especially temperatures above boiling points and below freezing points. Use it when you are cooking and barbequing, performing auto maintenance, doing home repairs, monitoring elec 3ADJUSTABLE EMISSIVITY& TEMPERATURE ALARM -Emissivity range is 0.1 - 1.0, you can adjust emissivity according to different material. We have attached a specific emissivity table to the manual for reference.The set temperature is reached at the highest/low 4USEFUL FEATURES ARE AVAILABLE ANYWHERE-Color LCD screen display with backlight can better distinguish the data at a glance; MAX/HOLD data function; Backlight display selection;Unit switch (/); Low battery indication and auto-off function in 30 seconds 5KEEP YOU AND THE ENVIRONMENTAL SAFE- EN61010-1, EN60825 & CE.U.S. Food and Drug Administration.1 Year Warranty.We strive to make the BEST Products Possible.If you don't feel 100% satisfied for the product, please contact us and we will do our best to sol1. Infrared temperature measurement (surface): -50C~550C -58F~1022F 2. Features: LCD display: color LCD display Laser: Test distance than target size (D:S): 12:1 Emissivity: 0.1~1.00 Response spectrum: 8~14um Reaction time: Auto power off: 30 seconds Operating temperature: 0-40 degrees Storage temperature: -10 C ~ 60 C Power: 1.5V*2AAA battery Measurement range (non-contact temperature measurement): -50 C ~ 0 C 3 C 0 C ~ 550 C (1.5% reading + 2 C) -58F~0F6F 0F~1022F(1.5% reading +4F) Accuracy (non-contact temperature measurement): -50 C ~ 0 C 3 C 0 ~ 550 C (1.5% reading + 2 C / 4 F) Note:It's for industrial use, not for body temperature measurement.