It's not ... but it's pretty good compared to others available at home.
The advantages it that it gives close to core temp,
you don't get weird results from talking or moving the probe around,
and you don't get variations to changes in skin blood flow (forehead pads).
It is not the most accurate.
The goal is to obtain an accurate CORE temperature reading - which is more accurately obtained with a good ear measurement device.
No. Under the arm.
For children under two years of age, yes.
Axillary
The same,if you have accurate reading of measurement in graphical method you can precisely measure so there will be no error, in using analytical method you must have an exact & perfect calculation to have an perfect product. .
Axillary,rectal,tympanic,or temporal method
Laser Ceilometer
A method of making a rough measurement is: Estimation Answered by :PopTy13
A systematic error occurring in a chemical measurement that is inherent in the method itself or caused by some artifact in the system, such as a temperature effect.
The pycnometer method is more accurate than the hydrometer method because it uses an analytical balance.
Groin temp. taken between the fold of skin formed by the inner part of the thigh and lower abdomen. this is the least accurate of most common methods for taking body temperature.
Measurement of the wobble of the star, caused by the orbital motion of the planet, detected either by accurate positional measurement of the star or by spectral shift in the Star spectrum
The electrometric method of pH determination provides a single value dependent on the concentration of hydrogen ions in the aqueous solution being tested. The colorimetric method of pH determination uses acid-base indicators to provide a range of values for a solution's pH, and is therefore less accurate than the electrometric method.
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The website Amazon.com has a specific method for using collaborative filtering. They use a method which combines using an item matrix with user data to provide an accurate data solution.