Non-contact: Using infrared technology, this thermometer allows for body temperature measurement without touching the ear or forehead, helping to prevent cross-infection among multiple users. Measuring distance: 5-8cm Intelligent: The large LCD backlight displays 3 different colors based on temperature, and an alert sound is activated for abnormal readings. It also features an auto-off function to conserve energy Accurate: Equipped with advanced infrared technology and a high-precision sensor, this thermometer provides fast readings in just one second with a measurement accuracy of 0.1C Multi-function: Designed for all ages, including adults and the elderly, it can measure not only forehead temperature but also ambient room temperature, object temperature, and liquid temperature. Ideal for home use, nurseries, hotels, and schools Convenient Design: Clear display and easy-to-use buttons ensure simple operation. The backlit screen is ideal for nighttime use. Its compact and ergonomic design makes it portable and convenient to carry. Batteries not included for air shipping safety reasons