Temperature Range -50°C ~550°C Accuracy±2% or 2°C Distance Spot Ratio12:1 Emissivity0.1-1.0 Response Time Wavelength500ms(8-14)um Repeatability±1% or±1°C Resolution0.1°C or 0.1°F High/Low Temp. Alarm Setup Max/Min/Avg/Dif Temp. Measurement Dual Laser Data Records °C/°F Selection Laser Target Selection Auto Power Shut Off Low Battery Indication PowerDC 9V