Hydrometers for wood: a review of the best models. How to make a moisture meter for wood with your own hands?

To determine the moisture level of wood, special moisture meters are used. To date, there are needle, contact and chip modification. On the parameters they are quite different. However, there are not so many manufacturers in the market of hygrometers. The main companies can be attributed primarily to EMCO and "Valkom". It is worth an average of a good moisture meter on the market around 1500 rubles.

How to do it yourself?

If necessary, you can make a moisture meter for wood with your own hands. Its scheme includes a sensor of dielectric type. Also, the device requires a compact generator. The parameter of the limiting frequency must be no more than 30 MHz. Contacts for a self-made model is more expedient to select needle. Still, to make a moisture meter for wood with your own hands, you need a three-channel chip.

The dielectric constant of the device should be in the region of 3.5 F / m. The microprocessor for the model is selected with an impulse amplifier. Probes most often are of a tubular type. It is more expedient to select a display line. Compared to textual counterparts, it is simpler. Directly the electrodes of moisture meters are capacitive. In turn, the catcher will need to be set resistive. The last choice for the model is accumulators. In this case, you can use ordinary finger batteries.

Contact Models

Contact moisture meters for wood are well suited for working with plywood, as well as parquet. In addition, in the construction industry, instruments are used to determine the moisture content of panels. If we talk about contract features, the generators in the devices are low-frequency. Directly the probes are installed in tubular type.

The dielectric constant of most moisture meters does not exceed 3 F / m. The maximum temperature of a model of this type is able to keep at 40 degrees. The display is used both as a line and text type. Many modifications are equipped with temperature sensors. The calibration function is available for many devices. It is worth on average a high-quality moisture meter around 2 thousand rubles.

Needle hydrometers

Needle-type moisture meters for wood are used, as a rule, for pine or spruce. The sensors in all configurations are of the dielectric type. If we talk about parameters, then the accuracy of the measurement basically fluctuates around 0.2%. The maximum moisture threshold of the devices does not exceed 35%. The minimum permissible temperature for the models is 0 degrees. Microprocessors in many devices are used with amplifiers. It is worth an average moisture meter for wood (needle) in the area of 1200 rubles.

Studded devices

Schukovye moisture meters for wood are mainly made by the company "Valcom". If you believe the opinion of experts, the parameter of relative error is extremely low. Generators in devices are used with a frequency of 20 MHz. Directly catchers are installed resistive type. The minimum moisture threshold of the models does not exceed 5%. In turn, the resolution of devices is at the level of 1 PH. Displays are often used in hygrometers of the line type. Some modifications are equipped with thermometers. The calibration function in devices is quite rare. Find a model of this type on the market can be for 2 thousand rubles.

Model EMCO AR

In the construction industry, the hygrometer is in great demand. For working with parquet and panels it fits perfectly. Also, this moisture meter is equipped with a thermometer. Another advantage of the modification can be called the presence of needle-type contacts. The microcircuit at the model manufacturer is provided three-channel, therefore measurement of humidity of wood occurs quickly. The electrodes are of capacitive type.

The maximum humidity threshold does not exceed 40%. In terms of size, this moisture meter is very compact, and belongs to the class of portable devices. According to the documentation, its mass without batteries is 80 g. The resolution of the model is at the level of 1.3 RN. The maximum permissible temperature of the model is exactly 35 degrees. In the frost, the presented device should not be used. The accuracy of the measurement varies around 1.4%. In stores this device can be found for 2100 rubles.

Devices for determination of moisture EMCO MP500

This moisture meter is equipped with a sensor of dielectric type. If you believe the feedback of buyers, then the resolution of the device is quite high. Directly the generator of the model is applied at 22 MHz. According to the documentation, the maximum permissible temperature is 40 degrees. The display in the device is of the text type.

The batteries are used for 1 mAh, so they last for long. In this case, the catcher manufacturer is designed resistive type. If you believe the experts' opinions, then problems with determining the importance of wood chips do not arise. The maximum depth of measurement is 10 mm. The user can buy the presented moisture meter for 1400 rubles.

Model "Valkom EM4806"

The specified moisture meter for solid wood, among other models, has a high resolution parameter at 1.3 pH. All this indicates that the device works fine at temperatures below 10 degrees. In this case, the measurement accuracy index is at 0.2%. The maximum permissible humidity threshold is 30%.

The catcher in the device is of a resistive type. The chip is used three-channel, and the generator is set low-frequency. According to the documentation for the device, the housing is provided with the protection system IP 62. The model weighs exactly 80 g. The memory of the moisture meter is sufficient for 30 thousand measurements. Buy it user can for 1500 rubles.

Reviews of "M804"

The specified moisture meter for wood reviews generally gets good. The main advantage of the model lies in its compactness. If we talk about the more constructive features, it is important to note that the contacts in it are of the touch type. There are two sensors in the body. Thus, the measurement accuracy is quite high.

The probe is provided in the device by a tubular type. The resolving power of the device fluctuates around 1.3 pH. The maximum moisture threshold, according to the moisture meter documentation, is 35%. Buy this date, this model can be for 2 thousand rubles.

Opinion about "AC101 Roll"

In the construction safura, the hygrometer is in great demand. First of all it is necessary to mention the qualitative generator, which is installed with a frequency of 33 MHz. In this case, the sensor is of the dielectric type. Contacts in turn are used needle. If you believe the experts' opinions, the accuracy of the measurement is high in the model.

For parquet and panels it can be used. The minimum permissible temperature of the device is 0 degrees. The resolution index is 1 PH. Directly the catcher in the device is installed resistive type. The microprocessor is used with a pulse amplifier. The maximum humidity threshold of the device is at 40%. Buy this moisture meter can only for 1400 rubles.

Description "Exctech МО280"

The portable moisture meter is characterized by a protected housing. The sensor is of the low-frequency type. In turn, the contacts are needle-shaped. Calibration function in the submitted copy is. The ambient temperature with this device can be determined. It is also important to mention the high resolution of the model.

The measurement accuracy in this case is 0.3%. The maximum humidity threshold for the model is allowed in 45%. The microprocessor is provided by the manufacturer with an operational amplifier. Thus, data processing does not take much time. The memory of the presented modification is enough to make more than 20 thousand measurements. Buy this moisture meter can be in the store for 1300 rubles.

Model "Exxtech MC60"

These wood moisture meters are often used by professional builders. They are able to work even at a temperature of 0 degrees. The system of protection of the case of the model is of high quality. If you believe the reviews of consumers, then in use the device is quite simple. Batteries for the model are matched with a capacity of 1.2 mAh.

According to many owners, they are enough for a long time. The probe of the present moisture meter is of a tubular type. The chip in the case is three-channel. The specified modification is equipped with a thermometer, and this pleases many buyers. If we talk about parameters, then the measurement accuracy is at 0.3%, and the resolving power of the device is only 1.2 pH.

Use the device at temperatures above 35 degrees is prohibited. The maximum permissible humidity is 40%. These hygrometers on the market are sold at a price of 2 thousand rubles.