Welch Allyn SureTemp Plus 690 Thermometer Delivers Oral Results inJust 4 Seconds. This electronic thermometer is easy to use, compact anddependable. It delivers oral results in 4 seconds, axillarytemperatures (for children under 4) in 10 seconds and rectaltemperatures in 15 seconds with the use of an optional, interchangeableprobe. Large LCD display features Fahrenheit or Celsius readouts andlast temperature recall. SureTemp Plus 690 This affordable thermometeris ideal for alternate care environments. Three 1. 5Vdc AA batteriesprovide 6000 readings. Automatic probe cover ejection; two-year limitedwarranty. Oral/Axillary Thermometer.