www.brothermax.com
4
“What is the difference between readings from different parts
of the body?”
• Normal body temperature is a range that, as the following table
shows, varies by site
2
:
2
Chamberlain, J.M., Terndrup, T.E., New Light on Ear Thermometer Readings, Contemporary Paediatrics, March 1994.
• Medical research has not yet determined a definitive correlation
between forehead, oral, rectal, ear, and armpit temperature
measurements, which is unsurprising given how different sites
can be so effected by external factors. Many medical practitioners
advise that measurements from different sites should not be
directly compared, however some medical practitioners advise the
following correlation of temperature results based on an average
normal oral temperature of 98.6°F
3
:
3
Jan Nissl, RN, BS, Rectal, Ear, Oral, And Axillary Temperature Comparison, Everyday Health, Inc, April 2007
• Note: When consulting your physician or other medical
professional, advise them that you have measured your forehead
temperature and if possible, the individual’s normal forehead
temperature range (see pg.16).
“Should the Screen light up when the thermometer is in use?”
• Yes, the screen does light up when the thermometer is in use.
The screen’s light automatically turns itself on every time a
measurement is taken, and automatically turns itself off after 10
seconds (to conserve the batteries).
• Please note that the back-light is barely visible in bright daylight.
“Why are the digits sometimes only partly visible when I
first switch the Thermometer on?”
• As the Screen is an LCD (liquid crystal display), the liquid crystals
sometimes need to re-set themselves during the first 10-20
seconds of power running through the screen. So long as all digits
and icons are visible within 20 seconds, and remain visible when
on, this is not a fault.
“What do the different definitions of temperature taking
sites mean?”
• Forehead = temple or forehead temperature
• Tympanic = ear temperature
• Oral = mouth temperature
• Ear = ear canal temperature
• Axillary = armpit temperature
• Rectal = anus temperature
Axillary
2
: Oral
2
: Rectal
2
:
94.5 - 99.1 ºF
34.7 - 37.3 ºC
95.9 - 99.5 ºF
35.5 - 37.5 ºC
97.9 - 100.4 ºF
36.6 - 38.0 ºC
Armpit
temperature
3
: Oral temperature
3
: Rectal temperature
3
:
Ear temperature
3
:
0.5°F (0.3°C) to
1.0°F (0.6°C)
lower than Rectal
or Ear temperature
0.5°F (0.3°C) to
1.0°F (0.6°C)
lower than Oral
temperature.
0.5°F (0.3°C) to
1.0°F (0.6°C)
higher than Oral
temperature.
0.5°F (0.3°C) to
1.0°F (0.6°C)
higher than Oral
temperature.
