Infrared Thermometer measures temperature from -4 to 950°F (-20 to 510°C).The blue backlit dual LCD display changes to red when reading exceeds High or Low set points €" great for processes that require temperature control and monitoring. Dual Laser indicates the ideal measuring distance where the two laser points converge to a 1€ target spot. Fast 150 millisecond instantaneous response for capturing spikes in temperature. Max hold captures and holds the highest temperature for easy identification of hot spots. It features adjustable high/low audible alarms and adjustable emissivity increases measurement accuracy for different reflective surfaces. There is a Lock function for continuous readings. Complete with 9V battery and carrying case.