Oral Thermometer reviews

While traditional mercury thermometers have been used to measure our temperature since we were kids, most of us know the dangers that comes with using mercury. These all dangers are put to rest with the Geratherm Mercury Free Glass Thermometer. It is a traditional thermometer but it uses a safe non-toxic substitute for mercury called Galinstan.

An FDA approved product, it does not pose any threat to human beings or the environment. If due to any reason the thermometer breaks, then the Galinstan can be cleaned normally with standard cleaning methods.

Who Is It For?

The mercury free glass thermometer can be used by a kid, infant and an adult. You can measure the temperature, using this oral thermometer, for everyone in your house.

oral thermometer reviews

Oral Thermometer Features

Here is a look at some of the things you would love about it.

Easy to use:

The thermometer is very easy to use. You have to just shake the thermometer to see if the temperature is 98.6F. Then, just put in under the tongue for about 3 minutes. Remove the thermometer and check the body temperature.


The accuracy of this oral thermometer is clinically proven. Oregon Health and Science University conducted formal clinical trials which proved the accuracy of the German-made thermometers.

Environment Friendly:

Mercury in thermometers is very harmful for the environment and human beings if the thermometer breaks. This German-made thermometers use a substitute to mercury called Galinstan.

It is a non-toxic liquid metal alloy which is made of gallium, indium and tin. Extensive studies have proved that this chemical is safe for the environment and humans also. If the thermometer breaks then it can be cleaned using standard home cleaners and thrown of as I just see where the Galinstan is at the thermometer.

Dual Scale:

After removing the thermometer from the mouth, you have to see where the Galinstan is on the thermometer and that is the temperature reading. It is extremely simple to read. It also has a dual scale that is it has both Celsius and Fahrenheit. This makes the reading even simpler.

Easy to clean:

You can clean it easily with a cotton ball or square shaped gauze which is dipped in alcohol. The thermometer comes with a protective case to keep the thermometer safe and clean.


  • It is very easy to use and read.
  • It has a lifetime warranty. So any defect in the product, it can be replaced.
  • It has a dual scale feature for easier reading.
  • The thermometer is doctor recommended and the accuracy is clinically tested and approved.
  • It is very easy to clean using cotton or gauze dipped in alcohol.
  • The protective case keeps the thermometer safe.


  • The thermometer sometimes does not go down to 98.6F irrespective of how much you shake it.
  • If the thermometer is used using axillary method, then it is less accurate and the time to read the temperature is longer.

Highlighted Features

  • The accuracy had been tested clinically and proved to be accurate.
  • It is very easy to read because of the dual scale present that is it has both Celsius and Fahrenheit reading.
  • It uses a safe environment friendly non-toxic substitute for mercury called Galinstan.
  • It can be easily cleaned using alcohol and kept securely safe with the protective case provided with it.
  • It is very easy to use by anyone.

FAQ- Some Questions and Answers

1- How do I bring down the temperature of the thermometer?

Hold the thermometer at the top. You just do a snapping movement on the wrist. You will have to usually do this 5-10 times before the temperature comes down.

2- How do we take the temperature using this oral thermometer?

Wipe the thermometer and then bring down the temperature to 98.6F by shaking the thermometer. Put it under the tongue for about 3-4 minutes. Remove the thermometer and see where the line appears on the thermometer. That is your temperature reading. You can read it Celsius or Fahrenheit.

3- What is replacing the mercury? How do we clean if chemical spills on the floor?

Mercury is replaced by a safe environment friendly FDA approved liquid metal alloy called Galinstan. It can be cleaned using standard household cleaning methods and can be disposed of as normal waste. It is no hassle and is completely safe.


You do not have to fear the thermometers breaking anymore. This is because this thermometer is extremely safe and environmental friendly. Apart from this, it is also very easy to use, read and store. It is like owning an entire package of a good thermometer. So, go buy it today!

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