The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
View Single Post
Old 11-07-2010, 05:19 PM   #3
Hoppy
Planted Tank Guru
 
Hoppy's Avatar
 
PTrader: (75/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 18,860
Default

The little photodiode might sense PAR or it might sense nearer to lumens, or anything in between. Considering the cost, that slight disadvantage isn't that important. It could work well for adjusting the height of T5 lighting, checking how much shading the plants are doing, noting bulb deterioration, etc. But, for getting data that can be compared to other's data, it wouldn't be that great.
__________________
Hoppy
Hoppy is online now   Reply With Quote