ZD Instrument Co.
ZD Instrument Co. manufactures electro-chemistry instruments including pH meters, conductivity meters, and TDS meters.
Introduction
ZD Instrument Co., formerly known as Jiangyan ZhengDa Scientific Education Instrument & Equipment Factory, is a dedicated manufacturer of electrochemistry instruments. Our primary products include pH meters, conductivity meters, "Nutra Wand" conductivity meters, and mini TDS meters.

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