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Cheapest way to monitor ph/ec etc. when beginning?

Grow Cycle Preparations

kabongster May 13, 2016, 11:25pm 2

Digital pH meter on Amazon Meters & Tools

pH pen on amazon: https://www.amazon.com/dp/B01AI10NQ6?tag=greenrel-20

TDS meter on amazon Meters & Tools

TDS meter on amazon: https://www.amazon.com/Quality-MagicPro-Released-Premium-Handheld/dp/B01JQZT1EU?tag=greenrel-20 https://www.amazon.com/XLUX-Digital-Measurement-Resolution-Accuracy/dp/B01A0MHHBW?tag=greenrel-20

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