Features: Widest temperature range from -58°F to 1400°F (-50°C to 760°C) Built-in laser pointer for easy targeting, high resolution of 0.1° up to 199.9° High 16 to 1 distance to target ratio measures smaller surface areas at greater distances Large backlit LCD display 0.10 to 1.00 adjustable emissivity for better accuracy on different surfaces MAX/MIN/AVG/DIF features display highest, lowest, average, and MAX minus MIN values Automatic Data Hold, auto power off Specifications: Range: -58 to 1400°F (-50 to 760°C) Basic Accuracy: ±2%rdg or 4ºF (2°C) 932°F (500°C) Max. Resolution: 0.1ºF/ºC Emissivity: 0.1 to 1.00 Adjustable Field of View (Distance to Target): 16:1 Dimensions: 3.9 x 2.2 x 9" (100 x 56 x 230mm) The 42540 is a High Temperature IR Thermometer. Measures surface temperature up to 1400 degrees F (760 degrees C) with a built-in laser pointer that identifies target area and improves aim. High resolution of 0.1 degrees. High 16 to 1 distance to target ratio measures smaller surface areas at greater distances. MAX/MIN/AVG/DIF features display highest, lowest, average, and MAX minus MIN values. Complete with 9-Volt battery and hard carrying case.