C/F unit selectable. Laser ON/OFF selectable. Backlight ON/OFF selectable. 20 seconds auto Power Off function. Celsius/Fahrenheit switchable. Equipped with a laser for aiming. LCD backlight. Light weight and easy operation. Measurement Temperature range: -50°C ~ 380°C ( -58°F ~ 716°F ). Response Time & Wavelength: 500ms & (8-14um). DC 9V battery operation (Battery Not Included). Backlight selection, enable you see the temperature display at night. Press and hold the button, this thermometer will read current surface temperature in 0.5 second. Help you measure surface temperature of hot, hazardous or difficult to reach object without contact. Package included: 1 x Non-Contact Infrared Digital Thermometer. 1 x 9V battery 1 x English User Manual.