Too bad, the product you are looking for is no longer available.
Here is the solution:
Analogue Indoor Thermometer made of Beech
This classic thermometer is made of solid beech wood.
By controlling the indoor temperature, you save on heating costs – up to 6%, with just one degree of temperature reduction. And you simply feel better.
The thermometer is entirely manufactured in Germany. A 2-point calibration makes it very accurate.
The capillaries are filled with a specially coloured alcohol, as the dangerous mercury is no longer used for it.