How should we make a choice among a variety of thermometers?

How should we maintain a forehead thermometer?

Can we check water temperature with a forehead thermometer?

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Let's Unlock the Mysteries

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Mystery 1: Which is more accurate, Braun forehead thermometer VS ear thermometer?

  • Both have passed rigorous clinical trials and achieved equally accurate results as expected.
  • The accuracy of consecutive temperature measurement is outstanding.
  • Eardrum shares the same blood supply with hypothalamus, the temperature control centre in the brain, so measurement of ear temperature can accurately reflect the temperature of the core body.

Generally, the Braun forehead thermometer:

  • Takes children’s temperature accurately with an average deviation of ±0.3 during clinical trials
  • Takes adults’ temperature with a very slight positive deviation, performing much better than the clinical standards
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Mystery 2: What factors affect the accuracy of a forehead thermometer?

  • Certain factors may slightly affect the accuracy of temperature reading.
  • E.g.: the distance between you and the thermometer, the skin's condition, and the indoor and outdoor temperatures, etc.

To ensure accurate temperature reading:

  • Try not to take the temperature reading immediately after being physically active
  • It is preferred to take the temperature reading after staying indoors for at least 30 minutes
  • Take readings between your eyebrows, or up to 2.5 cm away from forehead
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Mystery 3: Which method of temperature reading is the most accurate?

  • According to medical advice, temperatures can be classified into core temperature and surface temperature; and taking the temperature of ears is relatively accurate.
  • An oral thermometer, ear thermometer and rectal thermometer can be used to measure core temperature, and the results of measurement are relatively accurate and stable.
  • A forehead temperature and an axillary temperature can be used to measure surface temperature, while the surface temperature of skin is easily affected by external factors, including

Highly accurate

Multi-functional

Forehead has to be “touched” which is not convenient for measuring the temperature of someone sleeping

Very accurate; and the result of temperature taking can be reproduced  

Able to take temperature while sleeping

Can measure a relatively wide range of temperatures

Weaker clinic performance when compared with BNT400 

Not suitable for measuring temperature of a sleeping child

Highly efficient

Relatively less efficient, when compared with BNT400 in terms of clinical performance

Relatively uncomfortable, when compared with a touchless forehead thermometer

Braun BNT400 Forehead Thermometer

Highly accurate

Able to take temperature while sleeping

Highly efficient

Typical Multi-functional Contact Forehead Thermometer

(including ambient temperature / object's temperature / body temperature)

Multi-functional

Can measure a relatively wide range of temperatures

Relatively less efficient, when compared with BNT400 in terms of clinical performance

Typical Traditional Contact Forehead Thermometer

Forehead has to be “touched” which is not convenient for measuring the temperature of someone sleeping

Weaker clinic performance when compared with BNT400 

Typical Infrared Ear Thermometer

Very accurate; and the result of temperature taking can be reproduced  

Not suitable for measuring temperature of a sleeping child

Relatively uncomfortable, when compared with a touchless forehead thermometer

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Mystery 4: How should we make a choice between convenience and accuracy of consecutive temperature readings?

Which should we choose among a wide range of thermometers? In fact, different methods of temperature taking and various thermometers have their own strengths and weaknesses. Therefore, before making a decision, you have to choose between emphasizing convenience and accenting accuracy of consecutive temperature reading:

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Braun BNT400 Forehead Thermometer

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Traditional Mercury-in-glass Thermometer

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Touchless Infrared
Thermometer

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Braun IRT6520 Ear
Thermometer

Measure at forehead for convenience and comfort

Most stable

Relatively efficient and convenient

Most consistent in terms of consecutive temperature readings

Relatively less accurate than Braun Ear Thermometer as the surface temperature of forehead reflects the core body temperature less accurately, when compared with ear canal

Measurement of temperature takes around 3 minutes; and the positioning of the thermometer may affect the result

Relatively inconsistent in terms of consecutive temperature readings

Some people might feel uncomfortable to insert thermometer probe into ear canal

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Braun BNT400 Forehead Thermometer

Measure at forehead for convenience and comfort

Relatively less accurate than Braun Ear Thermometer as the surface temperature of forehead reflects the core body temperature less accurately, when compared with ear canal

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Traditional Mercury-in-glass Thermometer

Most stable

Measurement of temperature takes around 3 minutes; and the positioning of the thermometer may affect the result

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Touchless Infrared Thermometer

Relatively efficient and convenient

Relatively inconsistent in terms of consecutive temperature readings

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Braun IRT6520 Ear Thermometer

Most consistent in terms of consecutive temperature readings

Some people might feel uncomfortable to insert thermometer probe into ear canal

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Mystery 5: What are the differences between Braun BNT400 Forehead Thermometer and IRT6520 Ear Thermometer?

Braun IRT6520 Ear Thermometer:

  • Features ThermoScan® pre-warmed tip technology achieves the gold stanard of highly accurate and reliable temperature readings

Braun BNT400 Forehead Thermometer:

  • Convenient
  • Night light feature which helps to take a reading in the dark
  • Highly efficient to measure temperature in just 2 seconds
  • Can be used to measure the temperature of food and bath water
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Mystery 6: If the button of the forehead thermometer is frequently used, can it be damaged easily?

  • The button of the product has undergone rigorous testing and is proven to withstand at least 10,000 presses.
  • Effective and safe for daily use
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Mystery 7: When should we use a touchless forehead thermometer?

Braun BNT400 Forehead Thermometer:

  • To avoid direct contact with the patient
  • To measure the temperature of bath water or food
  • To avoid disturbing a resting patient
  • Any occasion when it is not appropriate to use an ear thermometer
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Mystery 8: How far should we position the thermometer from food and bath water?

  • 6.35 cm / 2.5 inches
  • Aim directly at the food / bath water
  • Do not aim at sides of container holding the liquid or food
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Mystery 9: What is AgeSmartTM feature with colour-coded display?

We have often heard that children and pregnant women have higher body temperature. In fact, the definition of fever changes with age and physiological condition. Clinical research shows the definition of fever changes among newborns, children, and adults.

 

Before taking a temperature reading , you can select the age range accordingly with the AgeSmartTM feature:

Green refers to normal temperature, yellow refers to elevated temperature and red refers to high fever.

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How to tell whether we have a fever? According to the Family Health Service of the Department of Health, normal body temperature from ear readings should be 35.8°C to 38°C. Body temperature higher than 38°C will be considered as having a fever.

However, there isn’t a fixed temperature reading that is considered normal: the normal body temperature of a person varies with the time of day, his or her activity at that time, and from which body part the temperature is taken; while one’s age and health condition may also affect the body temperature.

With the difference in the use of technologies and methods of measurement, it is normal to have different temperature readings among thermometers of various brands. To compare the products of different brands, analysis and comparison of the results of major clinical researches are recommended.

Please note that the following circumstances may affect the temperature readings:

  1. The skin of forehead is thin, so even little sweating will also affect the temperature. For example, after going for a stroll or walking in the office for a few minutes, the surface temperature of forehead will become higher, leading to a higher temperature measured by the forehead thermometer.
  2. While sweating because of doing exercise or having a fever, please wipe off the sweat with a dry towel before measuring temperature.

If you want to measure temperature accurately, you may pay attention to the following before measuring:

  1. The thermometer needs to acclimate to the room temperature for 10 minutes before taking a measurement.
  2. The individual being measured should be indoors for 30 minutes before taking a measurement.
  3. Remove dirt / hair from the forehead area.
  4. Wipe off the sweat with a towel if there is any on the forehead.
  1. Ensure that no liquid enters the interior of the thermometer. Never use abrasive cleaning agents, thinners or benzene for cleaning and never immerse the instrument in water or other cleaning liquids.
  2. After cleaning, wait 10 minutes before taking a temperature.
  3. Make sure to replace the protective cap after use to prevent scratches or damage from occurring to the thermometer.
  4. Never insert a sharp object into the scanner area or any other open surface on the thermometer.
  5. Use an alcohol swab or cotton swab moistened with alcohol (70% isopropyl) to clean the thermometer casing and the measuring probe in case of repeated temperature taking.

Features of Braun BNT400

Same as Braun IRT6520 Ear Thermometer; AgeSmartTM technology provides age-adjustable fever guidance to take the guess work out of interpreting temperature for the whole family.

Night light feature helps parents measure children's temperature without turning on the light.

Yellow light guides you where you are aiming; and the measurement can be done accurately in just 2 seconds.

Multi-functional; food & bath temperature mode for measuring the temperature of food, objects or liquid.

Same as Braun IRT6520 Ear Thermometer; AgeSmartTM technology provides age-adjustable fever guidance to take the guess work out of interpreting temperature for the whole family.

Night light feature helps parents measure children's temperature without turning on the light.

Yellow light guides you where you are aiming; and the measurement can be done accurately in just 2 seconds.

Multi-functional; food & bath temperature mode for measuring the temperature of food, objects or liquid.

部份商標為寶潔公司或其關聯公司認可使用。 ThermomScan® / AgeSmartTM 為Helen of Troy Limited 及/或其關聯公司的註冊商標。© 2022 版權所有.
Certain trademarks used under license from The Procter & Gamble Company or its affiliates. ThermomScan® / AgeSmartTM is a registered trademark / are trademarks of Helen of Troy Limited and/or its affiliates. © 2022 All rights reserved.