![]() There are far greater differences between devices in the measuring range for temperature than for humidity. The measuring range for humidity can be divided into subranges with different measuring accuracy. ![]() The others have a limited measuring range, for example from ten to ninety percent. Many thermo-hygrometers offer the maximum possible measuring range for the relative humidity from zero percent for completely dry air to one hundred percent for air saturated with water vapour. That is why the relative humidity is almost always given together with the temperature. Here, the usual fluctuations in the air pressure have far less effect than the changes in temperature. At the same time, the relative humidity decreases, although the value of the absolute humidity does not change. Since warm air can absorb more water vapour than cold air, the saturation quantity increases as the temperature rises. This quantity is dependent on the prevailing temperature and pressure conditions and thus the relative humidity is also dependent on temperature and pressure. The saturation amount is the maximum amount of water vapour that the air can absorb. Relative humidity is the ratio of the actual amount of humidity to the saturation amount in percent. Common units for humidity in the air and other gases are grams of water per cubic metre of air or, in the case of very small values, parts per million based on the volume proportion of water molecules in the gas mixture. The absolute humidity is given as a concrete mass or volume value for a certain amount of air. However, the absolute humidity can also be determined from the values for relative humidity and temperature for constant pressure conditions. Most thermo-hygrometers measure the relative humidity. ![]() When giving information on air humidity, a distinction must be made between relative and absolute air humidity. If you have any questions, please contact us at or +44 ( 0 ) 161 464902 0. The thermo-hygrometer is also ideal for monitoring the environment within clean rooms, labs, storage rooms and computer rooms. The optimal environmental conditions for humans are around 20 ☌ and 50-65 % air humidity. In househoulds, the temperature and humidity or moisture content is also important. A difference in temperature and / or humidity would mean that the stored products get damaged or even destroyed. Many warehouses need to be at an exact temperature, with a specific level of humidity. The thermo hygrometer is very useful in evaluating damage in a warehouse. The thermo hygrometer usually offers contactless working which enables non-destructive measurements. The thermo hygrometer is versatile in that it can take measurements, store them to memory and transfer data to a computer for further detailed analysis. The thermo hygrometer measures different ranges of humidity and temperature depending on the model. The thermo hygrometer measures both humidity of the air and temperature of the air.
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