The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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post #518 of (permalink) Old 04-17-2013, 02:48 AM
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Join Date: Feb 2010
Location: Long Beach, CA
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Are you calibrating these prior to shipment? Looking at similar data from others, mine seems to be reading at least double sometimes triple what would be expected. Any ideas?
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