The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
View Single Post
Old 04-14-2013, 06:26 AM   #514
Planted Member
PTrader: (6/100%)
Join Date: Jul 2012
Location: Massachusetts
Posts: 169

i was wondering why you used a photodiode vs a phototransistor? i was looking threw products and it looks like this one:
has an very similar responce to wavelengths as the graph in your first post, its a bit cheaper too...

Last edited by genocdex; 04-14-2013 at 06:30 AM.. Reason: edited for price correction
genocdex is offline   Reply With Quote