Determination of the wall deviation from Google Maps or from the land register plan

Determination of the wall deviation

Determination of the wall deviation from Google Maps or from the land register plan. Unless otherwise stated, we use your address data as a basis. We will send you a picture of your house with the marked direction for verification.
45,00 € incl. VAT
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  • Low price shipping outside the EU by registered letter
  • 2 weeks statutory right of return (customised products excluded)
  • Hotline: +49-611-185 11 06


Here you will find all you need to construct your own wall sundial.

Sundial calculation as a table with small scale sundial diagram. Please give address details (street, town), wall deviation (declination) and size of the sundial when ordering.

Adjustable gnomon for installation in the house wall. Standard length is 800mm. Custom-made available.

Fixable inclinometer for precise adjustment of the latitude of equatorial sundials. Also ideal for the adjustment of the gnomon of a vertical or a horizontal sundial. Gnomon diameter 4-12mm. Generally also suitable as a inclinometer for other purposes.

Measuring table to measure the wall deviation (declination) by the Sun.  Including software for your computer or laptop (Windows 10 or older). The latter can be purchased separately. The wall deviation or declination is the angle, that a wall's perpendicular makes with due south (i.e. a wall facing S has d=0°). Walls declining westward have positive declinations, those eastward, negative.

We can work out the wall deviation (declination) using a cadastral map your house or Google Maps.


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