This infrared thermometer features an 12:1 distance to spot ratio and is capable of measuring temperatures up to 752 degrees Fahrenheit (400 degrees Celsius). The R2300 is an affordable non-contact measurement solution able to quickly and efficiently measure the temperatures of hot, hazardous or hard-to reach objects from a safe distance. Built-in laser pointer identifies target area. 12:1 distance to spot size ratio. User selectable degrees Fahrenheit or Celsius. Digitally adjustable emissivity. Max, Min Readings. Backlit display. High and low alarms. Low battery indication and auto shut off. Temperature range of -25. 6 to 752 degrees Fahrenheit (-32 to 400 degrees Celsius). Accuracy of 4 degrees Fahrenheit (2 degrees Celsius) or 2% rdg. Spectral response of 8-14m. Emissivity of 0. 1 to 1. 0 (Adjustable). Response time 500mS. Maximum Operating Altitude of 6561' (2000m). Maximum Storage Altitude of 39370' (12000m). Powered by 1x 9V Battery. 6. 0''H x 4. 3''W x 1. 6"D. Weighs 6. 5 oz. (185g). Includes Battery. Fast responding and digitally adjustable emissivity will cover 90% of non-contact temperature applications.