The FLTR TMP104 offers instant, highly accurate measurement of body temperature. Perfect for kids and infants, but great for anyone, temperature is taken via the ear canal. Medical-grade precision ensures accuracy to within +/- 0.4°F. Instantly see if a person is experiencing a fever using the integrated Fever Alert indicators . Each measurement is stored in one of 32 memory locations. If you are monitoring a sick person, you can easily see how their temperature has changed with each new measurement. With smart features like auto shutoff to preserve power, you can be sure you are ready to instantly take a temperature when the time comes. Each thermometer also comes with a soft carrying case for storage and includes 2 x AAA batteries.