The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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post #502 of (permalink) Old 03-02-2013, 09:11 PM
Algae Grower
Join Date: Jul 2010
Location: Dorset, UK
Posts: 15
How much tweaking of the calibration pot are you guys having to do to get the thing calibrated against the real PAR meter? Is the circuit still as the first post, but with a pot inline with the fixed resistor? If so, what's the typical pot setting when in cal?

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