Technical File
File No.
ZHTF-CE-01-015
Rev. No.
A.5
Non Contact Infrared Body
Thermometer
Instructions for use
Rev. Date
2020-07-10
Page
18 / 19
18
9- Body temperature
Body temperature varies from person to person and fluctuates during the course of the
day. For this reason, it is suggested to know one's normal, healthy forehead
temperature to correctly determine the temperature.
Body temperature runs approximately from 35.5
to 37.8
(95.9°F-100°F). To
determine if one has a fever, compare the temperature detected with the person's
normal temperature. A rise over the reference body temperature of 1
(1°F) or more is
generally indication of fever.
Different measurement sites (rectal, axillary, oral, frontal, auricular) will give different
readings. Therefore it is wrong to compare the measurement taken from different sites.
Here below are typical temperatures for adults, based on different measurement sites:
-Rectal: 36.6
to 38
/97.9°F-99.1°F
-Axillary: 34.7
to 37.3
/94.5°F-99.1°F