Product · United States

Digital Online TDS Meter LCD Display Salinity Dissolved Oxygen Total Hardness Water Quality Purity Tester for School Laboratory

Product no longer available. The stores we track no longer sell it; last price seen $21.36.

Price history: 2 daily prices tracked since 2026-10-18; lowest $21.36, highest $21.36.

Digital Online TDS Meter LCD Display Salinity Dissolved Oxygen Total Hardness Water Quality Purity Tester for School Laboratory

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