Are you trialing it for them or did you buy it?
Yes, it is still in trialing, and the
www.sunrecordser.net site shows the current sites.
Is this much different than using Solar Radiation sensor to capture sunshine hours? Is this more accurate?
I don't have or know anything about solar radiation sensors but the B-L Sun Recorder seems pretty accurate from visual and recorded data. I have historical (1971-2001) climate normals & averages data from Environment Canada at London airport and that is shown in the Year (View Last 12 Months) image for monthly sun shine comparison on my site but I don't yet have a full month of data to make an actual to EC climate normals & averages comparison, and I have asked EC if current actual data is available for comparison as well. The unit does include the collection of W/M2 data that the B-L developers are working on, and will be comparing theirs to the Davis solar sensor data as well, but specific information on this should come from them.
I know that weather display calculates sunshine hours....
The B-L recorder is real data, not calculated.
Also I notice on the site http://www.sunrecorder.net/ no indication of cost or how you buy.
I know they are building more and you should enquire through that website's 'Contact'.
Also, this topic
http://sandaysoft.com/forum/viewtopic.php?f=16&t=1052 at
www.sandaysoft.com/forum (Cumulus forum Homebuilt thread) has the full development discussion, including recent UK Met Office comparison.
Thanks for asking,
Paul