Digital Tester TDS EC PPM Meter Water Purity Hydroponics Water Quality Test Pen

Ensure clean, safe, and healthy water with thisDigital TDS PPM Water Quality Tester Pen. TDS: 0–9990 ppm. 4-in-1 TDS • EC • Temperature | Accurate Water Purity Testing. TDS Range: 0 – 9990 ppm. Perfect for drinking water, aquariums, hydroponics, swimming pools, spas, and water filtration systems.

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