The Planted Tank Forum - View Single Post - Cheapest PAR Meter DIY
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post #14 of (permalink) Old 12-28-2013, 04:07 PM
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Is this a new and improved diy par meter?? I own one of your older ones with the different filter housing. Does that read the same as this model??

Like filter wise is it the same and will it read the same spectrum? I never saw any graphs with the older model.
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