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Bluelab Guardian Monitor CONNECT PH + Conductivity (EC PPM CF TDS) eoBP12 You would have to setup NRC_10" You would have to setup each unit separately High photosynthetic photon flux (ppf) They have been engineering water measuring technology for over 30 years They can be effectively used in recirculating or run to waste hydroponic systems or for a variety of water control purposes such as aquaponics or aquaculture
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