Battery: 2* button battery_x000D_ Repeatability: 1% or 1 C_x000D_ Display resolution: 0.1 C or 0.1 F_x000D_ Working environment: 0-50 C_x000D_ Temperature range: -50 -220 (-58F-428F)_x000D_ Accuracy: 2% or 2C_x000D_ Relative humidity: 10%-95RH non-condensing_x000D_ Storage temperature: -20C-50C_x000D_ Test time: 0.8 seconds_x000D_ Distance to spot ratio: 1:1 (the ratio of distance to measuring point size)_x000D_ Default emissivity: 0.95_x000D_ Recommended measuring distance: 10cm_x000D_ Material: Plastic_x000D_ Color: orange, black, red, blue, green (optional)_x000D_ Item weight: 20g/0.7 oz_x000D_ Package weight: 30g/1.1oz_x000D_ Item size: 9*2*1.9cm/3.5*0.8*0.7in_x000D_ Packing size: 9.5*3*3cm/3.7*1.2*1.2in