10 Best Thermometers: Reviews and Buying Guide

Every person goes through one or the other phase of his or her life, often associated with elevated temperature or fever. The temperature can be measured at various points of the body, such as under the armpits, in the mouth or on the forehead. Since digital thermometers exist, these measurements are not only more accurate, they also take much less time.

Top 10 Thermometers

Which thermometer types are there?

Anyone who is around 35 years old or older will remember the mercury contact thermometers used in childhood. If such a device fell to the ground, the glass broke and poisonous mercury balls pattered across the floor. Since the year 2009, these fever meters have been banned in the EU for private use, instead of established digital thermometers of all kinds, some of which come up with infrared technology.

But first of all to the simplest and most cost-effective electronic thermometer variant: the rod-like contact thermometer with small digital display. Some of them have a flexible tip, some are rigid. They are suitable for measuring the classic parts of the body such as underarm, mouth and anus. Precisely calibrated devices of this type are also suitable for measuring the basal body temperature for natural contraception or if you want to have children. However, there are special products with their own functions for this purpose.

The infrared thermometer is usually somewhat larger in size and has a distinctly different shape, wider and slightly curved. It often has an ergonomic handle and a larger display. However, the main difference is not in the outer design, but in the measurement method: As the name implies, here is the infrared technology used, which even allows a non-contact fever measurement in many of these devices. There are two major advantages to this in the first place, namely first that no contamination takes place, and secondly that the patient does not feel disturbed in any way.

These advantages are offered by the own clinical thermometer in the house

Of course, it used to be different: The mother put her lips to the temples of the child and immediately recognized whether this is now feverish or not. And the adults simply declared themselves feverish when they felt like it. But today we are very lucky that we can handle it differently and much more accurately: A clinical thermometer, no matter which model, not only provides certainty, whether a person has a fever at all, but it also shows exactly how high the Body temperature has already risen. Today’s devices are not only much safer than their old mercury ancestors, but they also work more precisely and hygienically. Non-contact measuring and protective hygiene caps ensure that disease germs can no longer spread via the fever knife.

Modern thermometers with fever alarm and storage options make it even easier to deal with the disease. Written temperature tables are no longer necessary. All in all, a considerable improvement compared to the previous situation without a thermometer, and that for a few euros, which are affordable for every household budget.

In short: Advantages of your own clinical thermometer

  1. Determining the exact body temperature
  2. Certainty about any existing fever
  3. Hygienic applications
  4. Easy monitoring of the temperature curve by memory locations
  5. Concrete data as the basis for medical consultation

You should pay attention to this when buying a clinical thermometer

At the very beginning, of course, there is the question of the quality of each device. A clinical thermometer is all about being able to make precise measurements that reflect the actual body temperature of a person. It does not always depend on the second decimal place, but the first place after the comma should be as true as possible. It’s better not to rely on a no-name device, but rather to orientate yourself on established brands that can come up with clinical tests and perhaps even medical recommendations.

The most important decision-making questions for the purchase

  • How precisely does the clinical thermometer measure?
  • Is it an infrared or contact thermometer?
  • Is non-contact measurement possible?
  • Which body parts are suitable for measuring fever?
  • Does the temperature determination also work on objects?
  • For which age groups is the thermometer suitable?
  • How fast does the device measure?
  • Is a beep at the end of the measurement?
  • Is there an additional fever alarm?
  • Is the alarm even age-dependent variable?
  • Does the display have lighting?
  • Does a silent mode exist to not wake the patient?
  • Does the device have a measured value memory?
  • How many memory locations does this memory have?

Which clinical thermometer is suitable for babies/newborns?

Babies are not among the most patient beings under the sun, and when ill, they often get whiny. A fast, non-contact fever measurement is worth gold in this case ! An infrared forehead thermometer is suitable for fast, non-invasive measurements that the child hardly notices – especially when the action is non-contact. Most forehead thermometers can also be used in the ear: this usually results in even more accurate readings. Most ear thermometers can even be used on newborns, as the dipstick does not have to be fully inserted.

Digital contact thermometers are only suitable for babies if they are used rectally. The armpit or oral cavity measurement is not reliably possible in the youngest, but the younger the little ones, the sooner they accept the measurement in the anus. In this case, it would be important to have a fast reaction time of the thermometer and, of course, a soft, flexible measuring tip in order to make the process as pleasant as possible for the child. If you opt for the rectal measurement on the baby, it is, of course, necessary to keep ready for the other family members another clinical thermometer, which is applied to other body parts.

Thermometer: When does one have a fever at all?

In the first few years of the life of a person “fever” or “elevated temperature” can be something quite variable: kindergartners get heated up while rumbling so far that the thermometer raises alarm, although the little rascals are all around healthy. While a baby of fewer than three months already has a fever at 38 ° C, in an older baby from this value only the increased temperature starts. In addition, there are daily fluctuations that cause the human body to be warmer in the evening than in the morning.

Orientation values for the fever measurement

  • Normal temperature: 36.5 – 37.5 ° C
  • Elevated temperature: 37.6 – 38.4 ° C
  • Fever: 38.5 – 39.0 ° C
  • High fever: 39.0 – 40.0 ° C

What are the costs of clinical thermometers?

A cheap thermometer is even for under three, four euros to have, in fact, even with digital function and without mercury. These are usually hard tip contact thermometers for the underarm, mouth and anus. This is certainly anything but luxury, but if the device works at least precisely, then it is enough for the absolute basic needs – or as an emergency nail on the go.

If you invest a few euros more, you will receive a digital contact thermometer with a flexible tip, which may even store one or two readings. This is a bit more pleasant when measuring! The measuring time is often still half a minute or longer for such devices for less than 10 euros, which can be much too long for small children. In addition, there are virtually no special features for this price.

The luxury class of Fiebermesser starts at about 30 euros and extends to an approximate maximum price of 60 euros. Everything really should be right with these products: the precise measurement, the applicability to baby foods and other objects and a good dose of special functions. Most of these devices come with transport bags or a fixed container. Some of these are recommended for the professional sector, which you may also see in your home and pediatrician.

Prices for clinical thermometers at a glance (approximate figures)

  1. <5 Euro: digital contact thermometer with fixed tip without extras
  2. 5 – 10 Euro: digital contact thermometer with the soft tip
  3. from 15 euros: Infrared thermometer for forehead and ears including extras
  4. 30 – 60 Euro: professional infrared thermometer with special features

Hygiene: How to clean and care for your clinical thermometer

When it comes to dealing with germs, extreme caution is required! A clinical thermometer should therefore always be absolutely clean when used. Only a careful cleaning and care ensures that a sufferer does not get even the viruses and bacteria of the previous user: But how can the hygiene be ensured?

Always clean your clinical thermometer directly after each use, no matter where you have measured it. Even with non-contact devices cleaning cannot be wrong, after all, there are enough pathogenic germs in the air and probably also on the hands of the user.

With these cleaning tips you play it safe:

  • If possible, use disposable protective caps for the measuring tip.
  • Wash the measuring tip with detergent and water.
  • Disinfection with cleaning alcohol complements the hygiene program.
  • You can also use a medical disinfectant.
  • Also periodically wipe the housing with a clean cloth.
  • Store your clinical thermometer in the appropriate container.

You should refrain from cleaning!

  • Do not use hot water.
  • Do not immerse the device completely.
  • Never use a steam appliance.
  • Never cook the fever thermometer.
  • Do not use aggressive cleaning agents or solvents.
  • Do not blow dirt off the device – because of the drops of saliva.
  • Be very careful with the infrared sensor.
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