pocket ph meter

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[CN] Xi'an Shelok Instrument Technology Co., Ltd. [Manufacturer]
Key Products/Services:
Business Overview: Xi'an Shelok Instrument Technology Co., Ltd. is a professional R & D and production of measuring instruments in the field of manufacturers. Products have pr...

USD4.9-5.1

[CN] Guangzhou 3win Electronic Technology Co., Ltd [Manufacturer]
Key Products/Services:
Business Overview: We were established in 2006 and are a professional manufacturer, engaged in the research, development, production, sale and service of TDS meters, PH meters...