Description No Touch Measuring, Just Safe and Hygienic: PT3 Built-in infrared temperature sensor reads body temperature within 1.18 inches of the center of the forehead without physical contact. Tri-Point Sensors Accuracy: An ultra-sensitive infrared sensor collects more than 100 data points per second while distance and environmental sensors help account for other variables, ensuring consistent accuracy with each use. Fast, Simple, Clear and Quiet: The intuitive single-button control design thermometer reads the temperature in just 1 second from a clear, bright, extra-large LED screen, even in total darkness. The quiet vibration alert ensures no buzzing noise and minimal disturbance. Suitable for Multi-Scenario and All Ages: iHealth PT3 is designed for all ages, from babies and toddlers to the elderly. Ideal for use in hospitals, hotels, schools, and public facilities. What You Get: 1x PT3 thermometer, 2x AAA batteries, 1x Instruction manual, 1x Quick User Guide, 12-month warranty, and customer support based in California.