Is Smart Device : no Theory : Multifunctional Thermometer Usage : Industrial Model Number : PLUS INK-IFT03 Infrared Thermometer Max Measuring Temperature : 120C & Above Display Type : DIGITAL Display Size : 1.9 Inches & Under Style : Handheld Brand Name : Origin : Mainland China Certification : CE Power : 9V Battery Response Time : 0.5S Distance to Spot Ratio : 16 : 1 Emissivity : 0.1 to 1.0 Temperature Measurement Range : -58~1328/-50~750 Storage Temperature : -20 to 50(-4~122) Operating Temperature : 0 to 50(32~122) Feature 1 : Accurate Result&Quicker Target Feature 2 : Backlit LCD screen,Colourful Display Multi-Function : Alarm,C/F Display,Max/Min/Average/Differential Temp Measure Multi-Uses : Foods,Refrigerators,Automobiles,Electrical Products,Chemicals