This digital thermometer makes temperature taking easier. The large display is easy to read and the water resistant design allows for simple, more thorough cleaning. Fever Signal provides you a quick and easy way to know if your child has an elevated temperature by playing a special alarm sound. Oral, rectal or under arm. Features: Fast 15 second reading. BPA free. Professional accuracy: +/0.2 degrees F in laboratory testing. Memory feature: Recalls last reading. Storage case and batteries included. Temperature shown in Fahrenheit or Celsius. For household use only. Meets ASTM standard E1112 as it pertains to digital thermometers.