The MT691 is a 650°C Dual Laser Infrared Thermometer that is small and compact with a pistol grip and has a super fast sampling rate of 150 milliseconds. The distance to spot ratio is 12:1, and the temperature range is from -50°C to 650°C. This dual laser infrared thermometer meter features two laser pointers which converges into a single spot when the unit is at the optimum distance from the object being measured. Special features include adjustable emissivity from 0.1 to 1.0, max hold, response time 150mS, large backlit LCD display, High and Low alarm and a trigger lock for continuous use.