Handheld infrared thermometer, the principle used is the object emitted infrared radiation has the radiation energy into electrical signals, the size of infrared radiation energy corresponds to the temperature of the object itself, according to the size of the electrical signals converted to determine the temperature of the object (such as steel). Handheld infrared thermometer by the optical system, photoelectric detector, signal amplifier and signal processing, display output and other components. Handheld infrared thermometer is convenient, accurate, safe, in the medical, equipment troubleshooting is more widely used. Selection of infrared thermometer should focus on performance indicators (such as temperature range, spot size, working wavelength, measurement accuracy, response time, etc.), ease of use, maintenance and calibration performance and price and other factors. The production of professional handheld non-contact infrared thermometer, easy to use, solid design, high measurement accuracy, wide temperature range and other characteristics. It has a laser targeting, with backlight display, maximum value, minimum value, average value, difference, data retention, high and low temperature alarm, adjustable emissivity and automatic shutdown. The handheld non-contact infrared thermometer can be used to measure those who are not suitable for the use of traditional contact measurement methods to measure the surface temperature of the object (such as moving objects, electrically charged surfaces and hard to reach objects). Features: l?Accurate non-contact temperature measurement l?High optical distance to object target ratio (D:S) l?Wide temperature range l?Unique new housing design l?Built-in laser sighting l?Automatic value retention l?℃/°F? Conversion key l?Emissivity adjustment from 0.10 to 1.0 l?MAX,MIN,DIF, AVG temperature display l?LCD display with backlight l?Automatic range selection with 0.1?C(0.1?F) resolution l?High/low temperature alarm setting.