Product Manual
38 Temperature Operation Welch Allyn Spot Vital Signs LXi
To take a temperature in oral or axillary mode:
1. Verify that the oral probe (blue ejection button) and matching probe well are installed 
(see “SureTemp Plus” on page 27). 
2. Hold the probe handle with your thumb and two fingers on the indentations of the 
probe handle and withdraw the probe from the probe well. 
3. Verify the desired temperature mode in the temperature display area and the desired 
temperature mode icon is flashing.
Figure 8. Temperature Mode Icons
If the desired mode is not selected, press the Navigation button up or down until the 
desired mode is highlighted in the Navigation Window and the correct icon is flashing 
in the temperature display area. Then press the Select button.
4. Insert the probe into a probe cover and press the probe handle down firmly. The 
probe handle moves slightly to engage the probe cover.
5. Quickly put the probe in place.
a. For oral temperatures, place the probe tip under the patient’s tongue on either 
side of the mouth to reach the sublingual pocket and ask the patient to close his/
her lips. 
Figure 9. Sublingual Pocket Location
b. For axillary temperatures, lift the patient’s arm so that the entire axilla is easily 
seen and place the probe as high as possible in the axilla. Do not allow the probe 
tip to come into contact with the patient until the probe is placed in the 
measurement site. Any prior contact between the probe tip and the tissue with 
another material may cause inaccurate readings. Verify that axillary tissue 
completely surrounds the probe tip and place the arm snugly at the patient’s side. 
WARNING  Do not take an axillary temperature through the patient’s clothing. 
Direct contact between the patient’s skin and the probe is required.
Caution Use the temperature probe with the blue ejection button and blue 
probe well to obtain accurate oral or axillary temperatures.
Oral  Adult Axillary  Pediatric Axillary 










