This Radiant TH889J Tympanic Ear Thermometer is designed with an advanced infrared and ambient temperature compensation technology for instantaneous self-diagnosis and accurate temperature measurements. It is suitable for the whole family ? from newborns to adults. Comes with 21 probe covers. Key features : Easy one touch operation 1 second temperature reading 9 memories for temperature comparison and evaluation Scale selection Centigrade or Fahrenheit Fever alarm High accuracy High reliability Ergonomic design for a comfortable grip and steady reading Comes with 21 (1 already installed) disposable hygienic probe covers which prevent cross infections Battery lasts for 6000 readings (normally more than 5 years) CE approved