Non-contact and fast measurement: Forehead thermometer can measure temperature in 1 second without physical contact. The infrared thermometer features a one-button measurement design for quick and convenient use. 3 in 1 Mode: The forehead thermometer offers three modes: ear, forehead, and object. In addition to measuring body temperature, it can also measure ambient temperature, water temperature, or surface temperature. This multi-functional thermometer meets various needs. Audible and visual fever alert: The infrared thermometer includes an audible alarm that activates when the temperature is outside the normal range. It features a four-color backlight display that changes based on the measured temperature, allowing for easy reading in any lighting condition. Accurate and reliable: Designed with technology that allows switching between adult and child modes for more accurate readings. Users can also switch between Celsius and Fahrenheit according to preference. Memory function and auto power off: The thermometer has a memory function that stores up to 40 temperature readings, helping track temperature trends. It automatically powers off after 10 seconds of inactivity to conserve battery life.