Infrared thermometer for quick measurement of the surface of the product whose temperature you want to know. Measurement range: -50 ° C to 420 ° C (-58 ° F to 788 ° F) Resolution ± 1, 5 ° C ± 1.5% Resolution 0.1 ° C and 0.1 ° F Point ratio distance: 12: 1 Emissivity: 0.95 (fixed) Automatic shutdown and Data hold Laser ON / OFF selectable Backlight ON / OFF selectable Power supply AAA batteries included