jianshengfeng

Erie Open Systems

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2Instructables2,696ViewsAkron, OH

Erie Open Systems is the maker of EOS 1 (Erie Open Spec v1.0), an open-source spectrometer for measuring nutrient concentrations in water

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jianshengfeng's instructable Making an EOS 1 Open-source Spectrometer's weekly stats:
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jianshengfeng's instructable Measure Nitrate Concentration in Water With EOS 1's weekly stats:
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jianshengfeng posted an instructable Assembly of EOS 1 Open-source Spectrometer (Walk-through)
- Assembly of EOS 1 Open-source Spectrometer (Walk-through)View Instructable »
jianshengfeng posted an instructable Measure Nitrate Concentration in Water With EOS 1
- Measure Nitrate Concentration in Water With EOS 1 View Instructable »