Since childhood, we are all used to measuring body temperature with ordinary glass mercury thermometers. Their cost is low, they give fairly accurate readings, and besides, these thermometers have an unlimited service life, if only they are not accidentally broken during shaking. Most likely, it was this reason that made some people turn their attention to electronic thermometers, because one of their significant advantages is precisely the safety during use.
Such a thermometer is not scary to drop, because it does not contain mercury, and if it suddenly breaks, then there will not be much harm from this. For people with poor eyesight, this thing can also be a real find, because the electronic thermometer has a liquid crystal indicator that clearly shows the temperature, and now it’s not necessary to look at the indicators of the mercury column. Such miracle meters are sold in any pharmacy.
However, this thermometer has some features. The instruction says that after the signal sounds, you do not need to immediately see the results, but it is better to hold for another two to three minutes. During this time, the readings may increase by half a degree or degree. This feature is explained by the fact that the electronic thermometer has a too small sensor, which is not in contact with the body. That is why the testimonies that are obtained are somewhat underestimated. In general, it is best not to pay any attention to the sound signal and keep the thermometer for three minutes (regardless of the manufacturer). Moreover, in most countries where these thermometers are manufactured, body temperature is measured orally or rectally, and not under the armpit, and most likely the meter is designed with this in mind.
I would like to note that certified instruments have the highest measurement accuracy, therefore it is worth treating Chinese counterparts with caution, not all of them have good quality. The principle of operation of the thermometer is based on changes in the electrical resistance of the conductor with its subsequent conversion into numerical values, which are then displayed on the liquid crystal indicator. When determining the temperature, the device monitors its change, and when the temperature of the sensor stops changing and stabilizes, the electronic thermometer will give a signal that the measurement is finished.
Separately, it is worth mentioning thermometers for children. Some of them allow you to measure your baby’s body temperature even when he’s sleeping. It is enough to hold the device on the forehead of the child, from temple to temple. Other thermometers resemble a standard electronic thermometer in shape , but have a bright, “toy” design. Such an electronic children's thermometer is safe for the baby, because it has a flexible tip and does not contain glass and mercury. In addition, many thermometers have a waterproof housing and a memory that stores the results of the previous measurement. There are also ear meters. Most children's thermometers measure the temperature quickly enough, literally within 10-15 seconds. This is very convenient, given the restless nature of the kids.
Whatever electronic thermometer you choose, remember that in order to get reliable results, you must strictly follow the instructions that come with the device. If this is not done, an increase in the error in the readings may occur, both in the direction of increasing and decreasing temperature. If you rely on the feedback of people using electronic thermometers, then we can conclude that the devices of different companies work differently and the error also gives out different, depending on how to measure the temperature. Often, to check the correctness of the result, they use the good old mercury thermometer.