About this item 1.Improved IR Thermometer: Self-customize highest and lowest temperature alarm, storage measured vaules up to 30 units and review those measurement values at any time, data hold function convenient for reading. Measuring objects' temp and can switch to "AT" mode to test the Ambient temperature. This infrared thermometer can't use to measure human or animal temp. Please note it before you buy it. 2.Quick Measure Temp: Infrared thermometer built-in laser sensitive temperature sensor, quick targeted articles and response time: 0.5s, the distance to spot ratio is 12: 1, accurately measure targets at greater distances. 3.Adjustable Emiivity: According to different articles temp reflection ability to adjust the emiivity from 0.10 to 1.00, which improves measurement accuracy acro different article surface types. Measurement range from -58F to 1742F (-50C to 950C ). 4.Humanized Design: Laser temp gun with backlit LCD screen, C/F units switchable, automatic data hold, display Max/Min/Current temperature, low battery indicator never accidentally run out of juice, auto power off function. 9V AAA battery included. 5.Wide Application Thermometer Gun: Instant temp readings can be use in your cooking, BBQ, performing car maintenance, doing electricity repairs, air leaks, testing refrigerator temperatures and other tasks. ABS plastic with anti-slip design convenient to grip. Please note: Digital thermometer will be incorrect when measure human or animal temp. Application 1.Important note: This infrared thermometer can't use to measure human or animal temp. Please note it before you buy it. 2.Instant temp readings can be use in your cooking, BBQ, performing car maintenance, doing electricity repairs, air leaks, testing refrigerator temperatures and other tasks. 3.As well as application in the kitchen, garage, ventilation, air conditioning(HVAC) installation,during home repairs, commercial heating. Feature 1.Storage measured value up to 30 units 2.Convenient review those storage values at any time, power off wont delete the data 3.Setting Highest and lowest temperature alarm, when temp exceed or low than your setting it will alarm 4.Maximum and Minimum temperature display: quickly lock highest or lowest temperature when you measure fluctuating temp or different objects temperature. 5.Ambient temperature measurement: selecting the AT mode to test the current environment temperature, same function as a ambient thermometer. 6.EMS Mode: Adjustable emiivity from 0.1 - 1 according to different objects emiivity, to make temperature more accuracy. 7.C/F units convenient conversion, easy for reading Important Note: Please note that the button"STO/CAL" is for storage temperature data or clean all saved data. Long pre the button "CAL" only for clean all the storage data Specification 1.Distance to spot size: 12 : 1 2.Temperature range:-50C to 750C (-58F to 1742F)/ -50C to 950C (-58F to 1382F) 3.Accuracy: 1.5% or 1.5C 4.Resolution: 0.1C or 0.1F 5.Repeatability: 1% of reading or 1C 6.Response time: 0.5s 7.Emiivity: 0.10-1.00 adjustable (0.95 preset) 8.Spectral response: 8-14 um 9.Dimensions: Approx. 6.89 x 3.94 x 1.97inche Include package 1 x Infrared Thermometer(not include battery 1 x 9V Battery 1 x User Manual