The forehead thermometers, or also known as infrared thermometers, are being a revolution in our times. Just using one thermal radiationWe will know if we have a fever or not. Something fast that we are seeing every day but we wonder, Are these types of thermometers really effective?
Is it as accurate as mercury or digital? It is another of the doubts that we are crowding in our head. Well, today we will dissipate each and every one of them, since we are facing a product that is increasingly taking center stage. A great alternative that may also have some 'but' in your life.
How Forehead Thermometers Work
This type of thermometers use infrared energy in order to make a clear measurement of body temperature. For this reason, they are usually seen in the shape of a pistol that are more comfortable and that has an LED screen, from where a kind of laser pointer starts. But that yes, always of low intensity so that it magazine problems. It will be pointed between the area of the forehead and its central part towards the temple.
They have a good sensor that will capture the radiation emitted by bodies. All of them when they increase in temperature, in addition to the mentioned radiation, they also emit a kind of waves with frequencies. All of this will come to the screen of the thermometer that functions as the sensor. It will be there where this signal that has been obtained becomes the temperature that we will see reflected. So it is said that this is how they measure temperature, or rather, how get their value from an energy that has been generated.
Are they safe for our health?
It is true that, based on they used infrared energy, jumped numerous comments against the use of this device. Hence, the doubts about whether or not they were safe did not wait. Are we facing a really safe thermometer? The truth is that yes. Because as we have commented, they manage to make the measurement from energy. They take it from the body but thermometers do not emit radiation or other harmful energies.
When we see the red light pointing towards our forehead, it means that it is simply pointing to that area of the skin. That is why all the information that was released about them has been clarified and in a positive way. Therefore, as a summary we can say that they do not emit any type of radiation so it is not a danger to the body, much less to the brain. It is the specialists who ensure that it is a completely safe forehead thermometer and that recommend use in times of pandemic to avoid contact.
Are Forehead Thermometers Really Effective?
Despite the fact that there are many opinions about them, we can say that they are effective. Since one of the main reasons to affirm it is its precision. It is true that this will depend on the model we have chosen, but broadly speaking, the accuracy of forehead thermometers it is quite successful. It is said that the margin of error can be between 0,1 or 0,3 °, approximately. Which would indicate that it would be much more accurate than we could expect.
Since, although it is true that there has always been Mercury thermometer As one of the precise ones, it is true that factors such as the ambient temperature also influenced it. Something that seems that in this case does not influence. It is a more precise, fast and reliable work, so in just a few seconds we will already know what our body temperature is and whether or not we really have a fever. What's more, when we have any kind of doubt, we can make two measurements in a row. Yes, we will wait just a few seconds and the thermometer will be ready again to do its work. If you see that the results do not come out the same, it is because the thermometer needs to be calibrated.
The advantages of forehead thermometers
It is true that in recent months they have had a great reception due to the Covid-19 pandemic. This is because they have a series of advantages that we must highlight:
- They are very fast thermometers: The truth is that we had seen them fast, but not so fast. The vast majority can measure temperature in just 6 seconds. What makes us have results earlier than expected and saves us a lot of time.
- They do not have contact with the skin: As we know, the thermometers that we have at home we used to place them both in the armpit, in the mouth or in the rectum to achieve a reliable result. In this case it will not be necessary to touch the skin. Something perfect for contagious diseases but also for babies who do not stay still for a long time.
- They have memory: Another practical point to take into account. Thus, we can record the measurements that we are making.
- They're safe: Yes, we have commented on it, but it is worth remembering it. It is also another advantage that they do not emit any type of radiation.
What to avoid for a correct measurement
Before we mentioned that there could be some small margin of error in temperature measurement. But this may be due to some external cause such as the environmental conditions in which said temperature measurement is made. So it no longer depends on the thermometer itself.
On the other hand, it is true that some models of thermometers are found at really cheap prices. Perhaps this can also give us a clue that its precision will not be as reliable as others that are already around slightly more expensive prices, although the vast majority are fully accessible, except for some more professional models that can even exceed 300 euros. Although logically for our home, one of such high price will not be necessary.
When making the measurement, we have to approach with the thermometers facing a distance less than 40 centimeters from the skin. Since if the distance exceeds this figure, it could give big errors. Without forgetting that the skin must be clean, without creams or makeup, to continue pointing to accurate data.
In the same way, it is not convenient that we are near the magnetic zone, that is, that we do not have around us electronics devices, as it could also lead to an erroneous reading. Having said all this, we are dealing with a device that can detect temperature, reliably and efficiently, but without touching the body. All are advantages!