This BENETECH GM550 Infrared Thermometer (-50℃ - 550℃) applies the principle of infrared for inducing surface temperature of a object， particularly high temperature object. It is especially widely used in steel casting， machine components， furnace temperature， glass， etc. Sophisticated manufacture makes it feature high precision， high resolution and low repeatability. LCD screen with backlight design enables you to get data easily and clearly even in the dark. This infrared thermometer is low power consumption as just run by a 9V battery， rather environmentally friendly and pollution-free. What is more， portable design with insulated material is safe and comfortable to handle. It is convenient and helpful without contact object directly. What a practical tool!                                    Features             Non-contact accurate temperature measuring tool <br> Built-in laser aiming<br> Selectable ℃ / ℉ unit conversion function<br> Low battery indication<br> Backlight ON / OFF selectable <br> Auto power off and data hold function<br> Laser ON / OFF selectable<br> High precision， high resolution and low repeatability <br>                                                            Specifications             Temperature Range     -50 to 550℃(-58 to 1022℉)    <br> Accuracy     ±1.5℃/±1.5%    <br> Resolution     0.1℃ or 0.1℉    <br> Distance Spot Ratio     12:1    <br> Emissvity     0.95(Fixed)    <br> Operating Temperature     0-40℃(32-104℉)    <br> Operating Humidity     10-95%RH Non-condensing Up To 30℃(86℃)    <br> Storage Temperature     -20-60℃(-4-104℉)    <br> Power     9V Alkaline or NiCd Battery    <br> Dimensions     15.3 x 10.1 x 4.3cm / 6.02 x 3.98 x 1.69" (L x W x H)    <br> Weight     7.34oz / 208g     <br>                                                             Package Includes            1 x Infrared Thermometer<br>1 x Manual<br>1 x 9V Battery<br>