The Triplett Model IRT350-NIST 12:1 Infrared Thermometer has a circular laser that accurately indicates the target area within it. It has a temperature range of -25.6 to 1112°F (-32 to 600°C), color EBTN display (Enhanced Black Twisted Nematic), adjustable emissivity with 5 user ...The Triplett Model IRT350-NIST 12:1 Infrared Thermometer has a circular laser that accurately indicates the target area within it. It has a temperature range of -25.6 to 1112°F (-32 to 600°C), color EBTN display (Enhanced Black Twisted Nematic), adjustable emissivity with 5 user presets, visual tri-color LED alarm alert with audible beeper, 5 sets of programmable high/low alarm preset values, real time clock with scheduled measurement and a lock function for continuous measurement.