industrial I dare not casual comments, just contact with a medical infrared thermal imager, the temperature difference is in 0. More than 2 degrees, the station through the system alarm personnel with temperature gun reiteration is a fever.

but the infrared thermal imaging system can only detect one at a time, because it is a multipoint testing temperature, most of the thermal imager is the forehead temperature detection, but the forehead temperature is affected by environmental temperature, for example just came in from a very cold place, or just bask in the sun, in the outside temperature will certainly have a deviation, so the system will detect the temperature of the neck and eye at the same time, then according to the highest temperature area calculation, accuracy is high. And, of course, its detection speed is very fast, 1 seconds to complete, after the people don't need to stay, so will not affect the passage.