The Extech 42510A Wide Range Mini IR Thermometer measures temperature from -50°C to 650°C (-58°F to 1200°F) with 0.1 degree resolution for readings up to 999.9 degrees. The adjustable high/low set points with audible alarm alerts users when temperatures exceed the programmed set points. It features adjustable emissivity for better accuracy on a variety of surfaces. Its built-in laser pointer can help identify target areas. Built in backlighting illuminates the display for taking measurements at night or in areas with low background light levels. 12:1 distance to target ratio. Comes with data hold, min/max, over range indicator, and auto power off functions. Complete with 9 V battery and pouch case.