When it comes to your baby's health, you want fast and accurate information. The Safety 1st Fever Light 1-Second Ear Thermometer provides exactly that. With a large digital display and the Fever Light bar that lights up when children have a fever, you'll know right away if your child's temperature has risen above normal. The thermometer also features a handy memory recall to help you keep track of the past 12 readings and a 'Clean Me' reminder. With readings in Celsius and Fahrenheit, this Safety 1st Ear Thermometer includes a replaceable button cell battery. All in all, just the thermometer you need to have handy at home with children around.