Non-contact infrared thermometer, including portable, online and scanning three series, with a variety of options and computer software, each series has a variety of models and specifications. In different specifications of the various models of thermometer, the correct choice of infrared thermometer model is very important for users of infrared detection technology is the "Ninth Five-Year Plan" national scientific and technological achievements of the key promotional projects, infrared detection is a kind of on-line monitoring (non-stop) type of high-tech detection technology, which combines photoelectric imaging technology, computer technology, image processing technology, by receiving the object sends out a signal of the temperature of the temperature of the object, and then the temperature of the object is measured. It combines photoelectric imaging technology, computer technology, image processing technology in one, through the reception of infrared rays emitted by the object (infrared radiation), the thermal image will be displayed on the fluorescent screen, so as to accurately determine the temperature distribution of the surface of the object, has the advantages of accurate, real-time, fast and so on. Any object due to its own molecular movement, constantly radiating infrared thermal energy, thus forming a certain temperature field on the surface of the object, commonly known as "thermal image". Infrared diagnostic technology is through the absorption of this infrared radiation energy, measured the temperature of the surface of the equipment and the distribution of the temperature field, so as to determine the heat of the equipment. At present, the application of infrared diagnostic technology test equipment is more, such as infrared thermometer, infrared thermal TV, infrared thermal imaging camera and so on. Like infrared thermal TV, infrared thermal imaging equipment such as the use of thermal imaging technology will not be able to see the "thermal image" into a visible image, so that the test effect is intuitive, high sensitivity, can detect subtle changes in the thermal state of the equipment, accurately reflecting the internal and external equipment, the heating situation, high reliability, and very effective in the discovery of hidden equipment problems.