The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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Old 11-08-2010, 01:39 PM   #9
mistergreen
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Here's the spectral sensitivity of this photodiode. As you can see, not the best match




I did find a photodiode that fits the bill though
http://sales.hamamatsu.com/en/produc...part-g1118.php


It's $17 , I think. Maybe I'll get it one day... I couldn't pass up a $1.5 photodiode.
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