From the manufacturer
XINQI Digital Infrared Thermometer
This thermometer infers temperature from a portion of the thermal radiation sometimes called as black-body radiation emitted by the object being measured. They are also known as laser thermometers, as a laser is used to help aim the thermometer, or non-contact thermometers/temperature guns, to describe the device’s ability to measure temperature from a distance.
Press start to measure the temperature and a loud beep will notify you when it is done. The digital thermometer has a 3-color backlight. When it detects a high temperature, it will flash the red backlight display and a sound alarm function. it comes with an auto switch off function if it remains idle, reducing battery power consumption.
It comes with a baby, toddler and child-friendly quiet mode. It has electronic infrared body temperature measurement with high accuracy that is suitable for infants, children, adults. The LCD digital display and clear reading make the non-contact digital LCD infrared thermometer safer and more convenient.