The device is easy to use. It is pressed and then poked the two peaks in the wall of the large button. Already the result can be seen. Taking the unit out again and pokes at another point in the wall, once the new result is displayed, the large button must be pressed again without. From 30% humidity, the device no longer attaches. Then the wall is very damp.
In the normal state of our inner wall has 0% humidity.
The result changed with us every day, because the wall dried. The cause could be so quickly narrowed down to the exclusion principle.
We recommend this device because it is meaningful and beneficial for our purposes.
