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Erie Open Systems is the maker of EOS 1 (Erie Open Spec v1.0), an open-source spectrometer for measuring nutrient concentrations in water
jianshengfeng's instructables
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- jianshengfeng's instructable Making an EOS 1 Open-source Spectrometer's weekly stats: 3 months ago
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- jianshengfeng's instructable Measure Nitrate Concentration in Water With EOS 1's weekly stats: 4 months ago
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- jianshengfeng posted an instructable Assembly of EOS 1 Open-source Spectrometer (Walk-through)4 months ago
- jianshengfeng posted an instructable Measure Nitrate Concentration in Water With EOS 14 months ago
