The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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Old 11-11-2010, 04:06 PM   #37
No more Bow ties
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Originally Posted by aaronbrown View Post
this might help you all out at least to make the sensor
I looked around for the photodiode used here... I don't think they make it anymore or anything like it. The maker got bought up or something.
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