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 combine to account for other variables; ensuring maximum accuracy every time temperature is taken. 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 alerting ensures there is no buzzing noise and no disturbance. Suitable for Multi-Scenario and All Ages: iHealth PT3 is designed for all ages: ranging from babies and toddlers to the elderly. An ideal choice for hospitals, hotels, school settings, and public establishments. What You Get: 1x PT3 thermometer, 2x AAA batteries, 1x Instruction manual, 1x Quick User Guide, our worry-free 12-month warranty, and friendly California-based customer service.