Too dry or too humid, the air inside a house can cause health problems such as allergies, both for children and adults. Fortunately, the hygrometer allows you to monitor the relative humidity level. Digital or analog, it's not easy to choose. Save time by reading our guide to the best hygrometers of 2021.
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Our selection
"The Brennenstuhl 1298680 can be used in private homes and apartments as well as by professionals. It optimizes the quality of indoor air and preserves…"
"The mini hygrometer high precision Doqaus HM1 provides 2 functions: it measures the humidity as well as the temperature. Sold for less than 10 euros,…"
"The ThermoPro TP 63 is a great solution for checking the humidity level in your baby's room. A temperature measurement system is added to the…"
"Here is a mechanical hygrometer that does not need batteries. It adapts to all environments and has an irreproachable precision. It is appreciated for its…"
The Brennenstuhl 1298680 can be used in private homes and apartments as well as by professionals. It optimizes the quality of indoor air and preserves the life of furniture and equipment.
17,53 £ on AmazonThe robustness of the Brennenstuhl 1298680 is one of its strong points. However, it must be admitted that for a hygrometer, reliability is more important than this feature. And in this respect, this model has nothing to envy its competitors. All the information concerning its use is well displayed on its LCD screen.
The Brennenstuhl 1298680 is simple to use and has a basic design. The buttons for settings and start-up are easily accessible to enhance the practicality of the device. For its accuracy, it should be noted that there is a 2% margin of error. Nevertheless, it is still good for testing the moisture content of materials and parts.
The mini hygrometer high precision Doqaus HM1 provides 2 functions: it measures the humidity as well as the temperature. Sold for less than 10 euros, it can be installed in homes, offices and factories.
7,99 £ on AmazonThe Doqaus HM1 has a bracket on the back for easy installation. This mini hydrometer with digital display can be placed on any furniture and contributes to the design of the room. In addition, the device offers an accuracy of plus or minus 3%. A humidity indicator is integrated in its system. It displays 3 different levels according to the detected rate: dry for a rate of humidity lower than 40%, comfortable for a rate from 40% to 60% and humid for a rate higher than 60%.
Theresponse time of the mini humidity detector Doqaus HM1 is about 5 s, very fast compared to other entry-level models. And despite its compact size, its display presents information well for easy analysis.
The ThermoPro TP 63 is a great solution for checking the humidity level in your baby's room. A temperature measurement system is added to the wireless hygrometer for convenient use.
23,19 £ on AmazonThe ThermoPro TP 63 digital wireless hydrometer has a range of 60 m for both temperature and humidity. Its easy-to-read digital display is easy to interpret. Moreover, it is backlit and suitable for all conditions of use. In addition, it is a 3-inch touch screen, which facilitates its handling.
The monitor supplied with the ThermoPro TP 63 can be used outdoors and is surprisingly resistant to low temperatures, down to -35°C. It can therefore become a good ally for the cellar. This hygrometer has a magnetic stand, but can also be placed anywhere. It works with batteries, but also a rechargeable battery.
Here is a mechanical hygrometer that does not need batteries. It adapts to all environments and has an irreproachable precision. It is appreciated for its role of humidity detector.
14,93 £ on AmazonTFA-Dostmann offers here a mechanical hygrometer, for indoor use. Its accuracy is impressive despite the dial display but not digital. This makes it suitable for professional and private use. A humidity indicator is located on the dial. It shows 3 levels, namely dry, ideal and humid. The humidity range displayed is from 0 to 100%.
This analog hygrometer is a hanging device for quick detection and easy reading of the humidity level. It will then be easier for you to determine when to humidify the air in the room, or on the contrary, to bring ventilation. This measuring device is particularly useful for preventing allergies in people and animals as well as mold on furniture due to humidity.
Any specific needs?
The best entry-level hygrometer
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| TOP OF THE TOP | CHEAP | TOP OF THE LINE | EXCELLENT | |
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9/10 |
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| OUR SELECTION |
Brennenstuhl 1298680
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Doqaus HM1
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ThermoPro TP 63
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TFA-Dostmann Hygrometer
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The Brennenstuhl 1298680 can be used in private homes and apartments as well as by professionals. It optimizes the quality of indoor air and preserves the life of furniture and equipment.
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The mini hygrometer high precision Doqaus HM1 provides 2 functions: it measures the humidity as well as the temperature. Sold for less than 10 euros, it can be installed in homes, offices and factories.
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The ThermoPro TP 63 is a great solution for checking the humidity level in your baby's room. A temperature measurement system is added to the wireless hygrometer for convenient use.
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Here is a mechanical hygrometer that does not need batteries. It adapts to all environments and has an irreproachable precision. It is appreciated for its role of humidity detector.
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Accuracy
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Dimensions
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15 x 6.5 x 2.5 cm
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4.5 x 5.8 x 1.8 cm
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19 x 15.8 x 5.6 cm
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10.2 x 3.5 x 11.3 cm
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Humidity range
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5 at 50% and 1.5 at 33%
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10 to 99%
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10 to 99%
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0 to 100%
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With batteries
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No
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Yes
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No (battery-operated)
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No
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Type
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Capacitive
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Digital
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Digital
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Mechanical
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The level of accuracy is certainly one of the most important criteria when you are about to buy a hygrometer. You can have a higher or lower accuracy depending on the use you will make of the measuring instrument. If your objective is to have an estimate of the hygrometry inside your dwelling, you can opt for a model whose precision is included between 5 and 10%. If you need to constantly monitor and know the humidity level in your baby's room, you should choose a hygrometer with an accuracy of between 1 and 5%. Finally, there are other more specific uses, such as measuring the humidity in a cigar box or the case of a musical instrument, for example. In these cases, a high-precision hygrometer, whose margin of error is generally no more than 1%, is recommended. These are high-end, and therefore expensive, instruments.
Expressed as a percentage, the measurement range indicates the relative humidity level that the hygrometer can measure. While some instruments can operate over a measurement range between 20% and 80%, others offer an accuracy of 0 to 100%. This criterion is especially important if you use the hygrometer in extreme conditions.
The choice of hygrometer type usually determines its ease of use. Digital models, also called electric hygrometers, require no prior adjustment before they are turned on. In addition, they provide clear, detailed, and easy-to-read information on their digital or LCD displays. For this reason, many users prefer them to mechanical models. Indeed, the latter often require an initial calibration out of the box, to be repeated once a year. Despite the calibration guide provided with the product, this operation is not always simple for the average person. However, there are models of mechanical hygrometers that do not need calibration.
If you also want to measure the humidity level outside, you should know that there are digital hygrometers connected to additional sensors. You can install them on the terrace for example. These sensors contribute to the accuracy and richness of the measurements provided. They are of course wireless devices.
Hygrometers are both functional and decorative objects that should enhance the interior space. They come in a wide variety of shapes and sizes. Their design also varies depending on the type of instrument. Digital hygrometers often have a flat square or rectangular shape and a stand that allows them to be placed on a flat surface. As for the mechanical models, they have a round shape with a thickness more or less important according to the price and the brand. They can have a foot that allows you to put them on a desk or another piece of furniture. Their manufacturing materials vary, but their dial and shell are very often made of metal (stainless steel, chrome steel, gold...).
If you are interested in digital hygrometers, be aware that they can offer interesting options depending on your needs. For example, you can opt for a model with sufficient memory and data logging function. They can provide you with the measurements of the last 24 hours. Others can analyze the variations of the measurements and indicate a trend for the next few hours. Still others are distinguished by their ergonomics, especially models equipped with backlighting and touch function.
The purchase of a hygrometer complements that of a humidifier, a mechanical ventilation system or an air dehumidifier. Indeed, it is important to make sure that the humidity rate of the ambient air remains within the standards, i.e. between 45 and 65% in a house.
To monitor the relative humidity in the house and ensure the health of the occupants
An atmosphere that is too dry or too humid can have consequences on health. If the air is too humid, the most fragile people are exposed to risks of allergy, asthma or other respiratory problems. Excessive humidity also encourages the growth of bacteria and dust mites.
On the other hand, if the humidity is too low, the occupants of a house can suffer from eye irritation or itching. Therefore, to be sure that the room humidity is within the standards, it is necessary to use a hygrometer.
To preserve materials
But this instrument is also used to preserve your home and certain objects that need to be kept away from humidity. Indeed, excessive humidity leads to the appearance of mold, the deterioration of wall paint or the degradation of certain materials such as wood.
Humid air is also the enemy of delicate objects such as musical instruments or cigars for example. For all these reasons, the use of a hygrometer can be essential.
Install the hygrometer so that you always have reliable measurements. You can put it in your bedroom, your baby's bedroom or in the living room. In any case, avoid certain locations. Do not place the instrument near a window, a humidifier or a heater, as this may distort the measurements. Also avoid placing it behind a curtain, because it will not be able to provide reliable measurements where air is not circulating.
In addition to special instruments such as dew point moisture meters or gravimetric moisture meters, three main types of moisture meters can be distinguished
Also called analog hygrometers, mechanical hygrometers measure the hygrometry thanks to a material which expands or retracts according to the humidity level. This material then activates a needle which indicates the value on a dial with a number. There are mechanical hygrometers with hair and those equipped with a metal spring.
Sought after by collectors or lovers of decorative objects, analog hygrometers require prior calibration. Fortunately, this operation is facilitated by a guide provided. It should also be noted that the functionalities offered by this type of hygrometer are reduced, since only the percentage of humidity, the temperature and sometimes the comfort level are indicated on the 2-in-1 models.
Also
known as electric hygrometers, digital hygrometers measure the humidity level using electronic sensors equipped with an electric resistance. They work with electric batteries. Their first advantage is their ease of use: they require no adjustment or calibration
. In addition, they offer a wide range of information, such as trends and the latest measurements recorded.
Additional features can be provided, such as a mold alarm, clock, temperature or remote measurement using sensors placed in another location. Aesthetically, digital hygrometers are less attractive than their mechanical counterparts. Nevertheless, some models from major brands adopt a neat design, a mix of smooth surface and extra flat shape.
As
their name suggests, these hygrometers are equipped with a capacitive humidity sensor. The principle is to measure the humidity with a metal oxide or polymer film that absorbs and measures the moisture. The value is then displayed on a digital screen as on a digital hygrometer.
Mainly intended for professionals who work on a construction site or for the maintenance of a building, capacitive hygrometers are very precise, but expensive. Their high accuracy means that they have only one function. However, they must be regularly maintained, including periodic replacement of their sensors. They also need to be calibrated before each use.
If you are looking for an instrument that is as functional as it is beautiful, and if the need for calibration does not bother you, you can consider buying a mechanical hygrometer. In addition to offering a very good level of precision, it is distinguished by its aestheticism which often exudes solidity, given that it is often made of metal.
If you have a weakness for old-fashioned styles, especially the needle display, the analog hygrometer will give you complete satisfaction. However, remember to choose a top-of-the-range model made of metal that will also decorate your interior.
Do you need an instrument that is easy to use and quickly functional? Then you can opt for a digital hygrometer that can also be very accurate. Once you turn it on, it provides you with the humidity measurements and any other data you need quickly and without prior adjustment.
Another notable advantage is that this device does not require regular maintenance. And to help you find the perfect model, it comes in a variety of designs.
Beyond their different designs, analog and digital hygrometers have in common their ability to give reliable measurements of relative humidity. They are designed to cover various needs. Nevertheless, analog models are visually more attractive, while digital ones are easier to use.
Do a calibration before using your mechanical hygrometer.
Although most analog hygrometers are factory calibrated, it is best to calibrate your instrument before using it. Follow the instructions in the user's guide or help yourself to tutorials easily found on the Internet.
Choose the hygrometer according to your needs.
The
choice of your hygrometer should be based in part on your needs. If you want to have an idea of the ambient hygrometry, a basic model may be enough. But if you need to react to the slightest deviation, opt for a more powerful model that will generally be more expensive.
Open your windows to reduce or increase humidity.
If
the measurements indicate that the humidity level is too low or too high, start by opening your windows. The circulation of air in your house contributes to the balance of hygrometry.
Increase humidity with damp cloth.
If
the humidity is low and you don't have a humidifier yet, you can increase it by putting a damp cloth on the heater
, for example.
The condensation will help humidify the air in the room.
Put leafy plants in your home.
Another way to remedy low humidity in the house is to place leafy plants in the house. This is because plants "sweat" by allowing water to evaporate through their leaves. This evaporation increases the humidity level.
The best hygrometer depends on your needs and your budget. Read our buying guide for the best products of the moment.
An
analog hygrometer is sold between €10 and €30. Digital models can be priced up to €50 depending on their options. Professional hygrometers can cost up to €100 or more.
Still
being
fragile, baby is more sensitive to too large differences in hygrometry. Also, you need to monitor more precisely the humidity level in your baby's room. So choose a model with better than average accuracy.
Your
hygrometer doesn't need any special maintenance. All you need to do is check the batteries in the case of a digital model, and perform periodic calibration if you have a mechanical model.
Most home hygrometers incorporate two functions, that of hygrometer and thermometer. Digital hygrometers may also include the clock function, while some mechanical models double as barometers.
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