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Old 04-17-2013, 02:47 AM   #519
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Default DIY PAR meter, Yeah you heard me

Originally Posted by xmas_one View Post
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?
It is matched to an apogee sensor. If you feel the readings are too high, you can adjust it by fiddling with the pot (blue thingy), counter clockwise to bring down the reading.

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