Product Introduction - The forehead thermometer is a kind of thermometer which uses the infrared receiving principle to measure the body temperature. When using, just need to aim the probe at the forehead position, and 1 to 5cm away from the measuring part, the human body temperature can be measured fast and accuracy.
Basic Working Principle - All the objects with temperature above absolute zero are always radiating certain proportion infrared radiation energy according to the temperature. The size and wavelength distribution of radiation energy are dosely related to its surface temperature. The infrared wavelength radiated by human body at 36-37 °C is 9-13 4 M. According to this principle, the surface temperature of human forehead can be measured accurately, and correct the temperature difference between the forehead and the actual body to display the accurate body temperature.
One year warranty from the date of purchase
Notice: Damage caused by improper use or self dis-assembly is not covered by the warranty
2 x AAA bateries included
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