Campbell-Stokes Lambrecht Heliograph

This precise Campbell-Stockes heliograph consists of a solid glass sphere which is capable of accurately projecting the sun's rays into a single beam of light, which is what burns the recording paper, thus marking the number of hours of sun a day.
Model adapted to latitudes of 20º-60º , also available the model for latitude 0-40º. Kit includes 1 set of recording paper (380 pieces). The recording paper is different for winter and summer than for autumn and spring.

Resistant to weathering corrosion, it is recommended to keep the sphere clean of dust. The heliograph is approved by the WMO .
Characteristics:

• Solid glass sphere
  
• Highly stable metal base or support
  
• Adapted to 20-60º latitude
  
• 1 set recording paper (380 pieces)
  
• Weight: 5.7kg
  
• Dimensions: 200x180x250mm