New thermometer put to the test in 373 people

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Study subjects (person who is having their temperature taken) must meet the following criteria to participate in this study: * Subjects that are minors must provide assent to the clinical site's policy (if approved by Baxter) and/or the study sponsor's policy to participate in the study. * Subject or the legally authorized representative (LAR) must sign the informed consent form in order for the subject to participate. * Subject must be willing and able to comply with the study procedures. * Age: normal weight (full-term) newborn to adult * The study subject is in ambient temperature for at least 20 minutes prior to participating. * The study subject is able to have their temperature taken for up to six minutes for multiple rounds of temperatures per anatomical site. * The study subject is not physically or emotionally agitated/uncooperative. * The study subject or legal guardian speaks/understands fluent English. Exclusion Criteria: * Study subjects (person who is having their temperature taken) are excluded if they meet any of the below criteria. Any subject that withdraws from the study will be replaced. * The study subject has anatomical abnormalities that would affect temperature. * The study subject has any known contraindication to oral, axillary, or rectal temperature measurements. * The subject is not alert or unable to follow simple commands such as closing one's mouth completely around the probe if an oral reference temperature is being taken. * The study subject has consumed food or drink, or smoked, within the last 20 minutes. The subject may be included if they wait 20 minutes prior to taking oral temperature. * The study subject has engaged in strenuous or semi-strenuous activity within the last twenty minutes (i.e., running, weightlifting, etc.). * Subject has taken antipyretics (Aspirin, acetaminophen, ibuprofen) in the preceding 120 minutes. * Subjects has medical conditions such as inflammation at the MEASURING SITE (Barbiturates, thyroid preparations, antipsychotics, recent immunizations). * Neutropenic immunocompromised patients, in whom rectal manipulation may seed the blood with bacteria. Note: The study subject will be excluded if the reference temperature does not stabilize after the 3 -5 minute monitoring time.