Non-Contact Technology For Safe & Hygienic Use: With a built-in temperature sensor, the thermometer can read a persons body temperature within 1.18 inches from the center of the forehead without physically touching the person. High Accuracy Via Tri-Point Sensory: An ultra-sensitive infrared sensor collects more than 100 data points per second while distance and environmental sensors work together to account for other variables, ensuring maximum accuracy every time the temperatureis taken. Simple, Fast, Clear, And Quiet: With an intuitive single-button control design, the thermometer reads and shows the temperature in just one second on its easy-to-read, extra-large LED display, even in total darkness. When the temperature is read, thedevice gives a gentle vibration notification to the holding handno beeps or buzzes. Suitable For Wide Usage Scenarios & All Age Groups: This iHealth thermometer (model PT3) is designed for all ages, ranging from babies and toddlers to the elderly. An ideal choice for at-home use and for hospitals, hotels, schools, and other publicor private establishments.