gun high precision thermometer infrared features:1:Distance to spot size ratio is 13 to 1 at the focal point.2:Unique flat surface,mini modern housing design.3:Class II laser to identify the centre point of the area being measured.4:Max/min memory.5:Impact-resistant ABS case.6:Auto data hold when trigger released.7:Auto power off.8:Backlighting illuminates display for taking measurement at night or in areas with low background light levels.9:Fixed emissivity at 0.95.gun high precision thermometer infrared specifications:Model:IR-803Range:-50～850℃;-58～1562℉Accuracy:-50℃～0℃: ±4℃  0℃～850℃:±2% or reading ±2℃gun high precision thermometer infrared pictures:Recommendations:Dual Laser Industrial High Quality Infrared Thermometer13:1 Compact Infrared Thermometer GunPocket IR Thermometers