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Shiantech - Model SA1600 - Carbon ...

Shiantech - Model SA1600 - Carbon Dioxide (CO2) Controller for Hydroponics Cultivation

FromBeijing Shi’An Technology Instrument Co., Ltd

This carbon dioxide monitor& controller controls the co2 regulator and ventilation fan, here are two videos https://youtu.be/Q4LsFLX8IN4 https://youtu.be/7ty_JE_kmtY