Dual read display: Jumbo 5 color dual reading LCD display changes colors as temperature rises. Unique features: ThermoTrend informs you of a trend in temperature increase or decrease. FeverAlarm alerts you of a temperature above 99.5 degrees. A different beep sounds for normal temperature. Fast: Results may vary by individual and measurement method. Most rectal measurements occur within 10 seconds, and oral measurements from 15-25 seconds. Soft flex tip: Probe fits naturally under tongue for comfort. Certified accurate: Meets accuracy standards for clinical thermometers. This digital thermometer may be used for oral or rectal temperature taking. Contains: 1 Fever Flash digital thermometer, one CR2032 3V DC battery, protective case, instructions and warranty information.