Data sheet
Place your hygrometer in the room where you want to measure the humidity level. Please observe the following guidelines:
All hygrometers have a margin of error of +/- 5%. To compare two displays, the measurement must be carried out under the same conditions (e.g. same temperature) and in the same location.
This means that the humidity level is below 20%, which corresponds to very dry air. In fact, the recommended humidity level is between 40% and 60% in homes and offices.
On the back of the hygrometer, open the circular compartment by inserting a paper clip or coin into the notch and rotating it. Place the battery under the two tabs by pushing it down.
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