This compact digital thermometer allows you to quickly and easily measure your body's temperature by mouth. Thermometer provides readings within +/- 0.1 degrees, for an accurate reading you can trust when diagnosing the temperature of your child or family member. The small design allows you to easily travel with the thermometer which is fully waterproof. To take your temperature,place the thermometer under your tongue, and quickly receive your temperature within a few seconds to allow for the quick diagnosis of fevers. The device will beep when your reading is ready, which you can easily read on the digital display. The previous test results are saved, and displayed when the thermometer is powered on, so that you can track your body's temperature changes throughout the day.