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Archive for: October 2013

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  • October 29, 2013

Why you should calibrate your pH meter for hydroponics every week!

Wondering how to recalibrate your digital pH meter? Wonder no more! We show you how using an HM Digital PH200, Dear W€€D, I love you. (Share if you agree)Tweet

Dear W€€D, I love you. (Share if you agree)