Advice 1: What a hygrometer is better - mechanical or electronic?

In rooms where air-conditioners are required to maintain optimal humidity. To assess this environment and to take action to change it, use household hygrometers, which can be mechanical or electronic. Each type of thermometer has its own advantages and disadvantages.
What a hygrometer is better - mechanical or electronic?

Hygrometer mechanical type: the simplicity and accessibility

Mechanical hygrometer is most commonly used to control humidity in the premises. It is cheap, simple in design, but not always, has a high sensitivity to humidity changes. The simplest hygrometers mechanical type are not validated meteorological services, and therefore cannot be certified. The measurement results for this reason are far from the real environment settings. Hygrometers of this type are very sensitive to mechanical stress and therefore require the most careful treatment.

For hygrometer mechanical type is set to the place of its installation. Often devices of this type is required to hang on the wall. Such an arrangement is not always convenient, because it can make a dissonance in the interior. Everything else, wall hygrometer is not mobility, so moving it from one room to another difficult.
Wall hygrometer mechanical type without any additional configuration can only be used in stationary mode.

Electronic hygrometer: measurement accuracy and versatility

Electronic humidity meter has significant advantages, if compared with the mechanical type of hygrometer. It is able to operate in a wider temperature range, fixing the minimum variances in the humidity. Most quality models can be operated in the temperature range from -30 to +60oC.
E-filling ensures a higher accuracy of measurement, which mechanical devices are not always able to provide.

Another advantage of electronic device – data visualization. Typically, such a hygrometer has a digital indicator which displays the level of humidity in the room. Very often, the device is universal and provides the possibility to remove the temperature reading shows the time and provides some other useful information about the environment.

Household electronic hygrometer of the type have a modern design that fits perfectly into the interior of the dwelling. These devices are compact and can be installed in any point of space. Even the color of the body of the hygrometer can be selected taking into account the design of the room.

There are more sophisticated electronic devices for measuring humidity, which are composed of several radio-controlled sensors. They can be mounted in the right places of the apartment or country house, as well as outside. The smart device collects information about humidity from several points, and the automatic control system on the basis of these data it makes changes in the climatic regime even in the absence of the owners.

Advice 2: How to choose the right hygrometer

A hygrometer is a device by which the measured humidity. There are many kinds of this device. If you want to buy a hygrometer, first determine what it is measuring with its help you will spend.

How to choose the right hygrometer

What to look for when choosing a hygrometer

Usually buy a hygrometer in order to obtain accurate information about the level of humidity in the office, apartment or other premises with conditioned air. Thanks to this device you can quickly make changes and to control the degree of moisture that will make conditions of stay of people in this room more comfortable.

Also consider purchasing an additional RC of the temperature sensors, with which it is possible to equip a modern device. You can mount them in any place of the apartment, and outside distance up to 30 m from the instrument. Thus information about temperature conditions in different locations will be received at the same time.

In addition, new devices may have memory functions that allow you to register maximum and minimum temperatures. So you can control the temperature in your absence.

When choosing a hygrometer to focus on its specifications. Especially important is the role of the measured pressure parameter. And therefore decide initially what humidity you will determine the relative (RH) or absolute, which is measured in g/m3.

You also need to consider the measurement range, the hysteresis and accuracy. If you want to buy high-precision humidity sensor, you will need to focus on the optical device. Degree of protection IP scale means what is the degree of protection against penetration of dust and water inside it has the device. With regard to the indicator on the working temperature, it is important if you want to perform measurement in non-standard conditions.

How to choose a hygrometer: additional recommendations

When choosing a hygrometer first and foremost decide on how much humidity it needs to measure. In sale there are models capable of measuring the absolute humidity of the air and working only with relative humidity.

Define the measurement range, as there is a possibility to buy a model with which you will be able to determine a high enough humidity for her. Decide for yourself how important the accuracy of the hygrometer. If it is critical – buy optical instrument.

Determine the conditions which will be measured. You need to understand whether there is a possibility of moisture or dust into the device. Developed IP protection scale hygrometers - 0-6 to 0-8 dust and water. Based on the possibility that these substances give preference to models with the right scale.

It should also be noted that some hygrometers, measuring humidity at non-standard temperature conditions, can give distorted figures.
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