TDS Meter Water Quality Tester 0–9990ppm | TDS Pen leg fatigue If using a standard (non-fast-charge)

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TDS Meter Water Quality Tester 0–9990ppm | TDS Pen leg fatigue If using a standard (non-fast-charge)Know What's in Your Water Instantly The TDS Meter & Water Quality Tester gives you fast, accurate readings of total dissolved solids (TDS) in any water source. Whether you're checking your drinking water, brewing the perfect cup of coffee, monitoring your aquarium, or managing a hydroponics system, this compact TDS pen delivers reliable results in seconds. Made in Mainland China. Why You'll Love This TDS Pen Wide 09990 ppm Range: Covers everything