Battery: 2* button battery Repeatability: 1% or 1 C Display resolution: 0.1 C or 0.1 F Working environment: 0-50 C Temperature range: -50 -220 (-58F-428F) Accuracy: 2% or 2C Relative humidity: 10%-95RH non-condensing Storage temperature: -20C-50C Test time: 0.8 seconds Distance to spot ratio: 1:1 (the ratio of distance to measuring point size) Default emissivity: 0.95 Recommended measuring distance: 10cm Material: Plastic Color: orange, black, red, blue, green (optional) Item weight: 20g/0.7 oz Package weight: 30g/1.1oz Item size: 9*2*1.9cm/3.5*0.8*0.7in Packing size: 9.5*3*3cm/3.7*1.2*1.2in 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). 55. Thermometers are only suitable for industrial use.1*Temperature pen 1*Instruction