[JT118]

My previous post seems to have disappeared;

Hi looking at these solar radiation sensors, I attach a very basic schematic (as far as I can see it.) and a few pictures of the layout of a Davis 7821 sensor. There are a few other things to consider.
a) The diffuser (any ideas on material.?)
b) The double housing which allows an air flow around the sensor inner housing. Presumably reducing the need for temp compensation.
Other info:
http://www.davisnet.com/support/weather/...sp?dtype=2
7821
Can this, or similar work on weatherduino?

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just two more pictures, sketch of schematic for davis as far as I can see it and photo of inner housing, note another housing goes over this; which allows a flow of air through effectively a "double skin" housing, also note "diffuser"