Accurately measures between: -49ºF – 752ºF and -45ºC – 400ºC, Accuracy of +/- 1.8˚F (1˚C) in key 32˚F – 149°F (0 to 65°C) range, Fixed emissivity at 0.95, Resolution: 0.1˚F (0.1˚C), Scan and hold features, Spot to distance ratio: 6:1, Includes nylon storage case and 2 AAA batteries