Measuring Range:-30 to 550-Degree C (-22-Degree F to 1022-Degree F) Measuring Accuracy: ±2.5% or 3-Degree C (Note: Specified accuracy is for ambient temperature variation) Distance to Spot Ratio: 12:1 Display Resolution: 0.1-Degree C/0.1-Degree F Emissivity Selectable: 0.85/0.90/0.95 Laser Radiation: Class I,