Product Information
Different Helios sundial models
Technical information
Service
Engraving/inscription options
(English, PDF format. To read these, you will need Acrobat Reader. Free Download: www.adobe.de/)
The HELIOS sundial
20 page extensively brochure
The cosmic chronometer: The sundial's functions, astronomical background and accuracy
Its 20 years development history: the inventor and his idea, from a mirror on the windowsill to the laser-produced HELIOS sundial
(German, PDF format)
