The IR2 Infrared Non-Contact Thermometer features an easy measurement recordings with 2% accuracy through the help of a built-in laser sighting. It provides users with accurate measurements even in difficultly reached areas. The instrument measures distances with a 9:1 distance to target ratio with a fixed emissivity of 0.95. It is excellent for measuring surface temperatures of concrete, asphalt, rubber or oxidized metals. It also comes with a back lit display that reads the detected maximum temperature with a superb monitoring surface temperatures of air ducts, boilers, engines or light fixtures.