SureTemp Plus 690 Wall Mounted ThermometerAdvance your temperature routine with the Welch Allyn SureTemp Plus 690 wall mounted thermometer featuring technology that sets the standard for speed and accuracy. Features: Large LCD displays in Fahrenheit or Celsius Convenient storage for 25 probe covers Last temperature recall button Captures about 6,000 readings on 3 AA batteries Optional security wall mount protects against theft Approximately 4 6 second oral readings, 10 13 second pediatric