Feature 11. Non-contact infrared thermometer pen, small size, small and portable, easy to use. 22. With LCD screen, clear display of temperature and remaining power. 33. You can select Celsius or Fahrenheit through the hole on the back of the temperature pen. 44. Accuracy: 2% or 2C. Temperature range: -50C to 220C (-58F to 428F).Battery: 2*AG13 button batteryRepeatability: 1% or 1 CDisplay resolution: 0.1 C or 0.1 FWorking environment: 0-50 CTemperature range: -50 -220 (-58F-428F)Accuracy: 2% or 2CRelative humidity: 10%-95RH non-condensingStorage temperature: -20C-50CTest time: 0.8 secondsDistance to spot ratio: 1:1 (the ratio of distance to measuring point size)Default emissivity: 0.95Recommended measuring distance: 10cmMaterial: PlasticColor: orange, black, red, blue, green (optional)Item weight: 20g/0.7 ozPackage weight: 30g/1.1ozItem size: 9*2*1.9cm/3.5*0.8*0.7inPacking size: 9.5*3*3cm/3.7*1.2*1.2in Package included:1*Temperature pen1*Instruction