Temporal thermometer lets you take your child's temperature without any fuss or discomfort. Thermometer memory remembers the last 8 readings, so you can easily track fever progression. Soft-glow display lets you check temperature even in a dark room. Silent mode for taking temperatures while someone is sleeping. Easily switch between Fahrenheit to Celsius with one button. The temporal thermometer technology has been proven accurate by more than 100 published clinical studies.