TRI-MODE FUNCTION - Measure the temperature of the forehead of the ears and of the room with a single thermometer. Open the gray cover to use the ear mode feature. DO NOT DISTURB THE BABY'S PEACEFUL SLEEP; when you have finally managed to sleep your restless baby the silent mode allows you to monitor your sick baby without having to wake him. Unlike other thermometers that will only beep in case of fever, our thermometers also display a color alert. EASILY MONITOR BABY FEVER; we understand that taking the temperature of a crying and screaming baby can be really exhausting. This is why we offer the atrial and frontal functions for a fast temperature display that will not bother baby unlike oral or underarm thermometers. EASY TO USE; our baby thermometer is perfectly suited for domestic use without complicated configuration. Just open it and use it. Switch between front and ambient atrial temperatures with a single button and an icon that clearly shows you the selected function. Quickly switch from Farenheit to Celsius by holding down the "MEM" button for 3 seconds. ACCURATE AND RELIABLE; our reliable and accurate front and ear thermometer gives you your baby's temperature in 1 second. Our advanced three-mode infrared thermometer is designed to be extremely easy to use. Highly recommended by pediatricians and health professionals for its reliability and ease of use.