TDS-7 Pen 0-9990ppm High Precision Water Hardness Instrument TDS Tester PH Meter Aquarium Pool Water Quality Purity Testing Pen

TDS-7 Pen 0-9990ppm High Precision Water Hardness Instrument TDS Tester PH Meter Aquarium Pool Water Quality Purity Testing Pen
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sku: 1005006366951277
$4.97
Shipping from: China
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