TDS PPM Meter Digital Tester Haus Trinken Leitungswasser Qualität Reinheitstest Tester
4,84 €
Guitar Fret Crowning File Fretboard Diamond Coating Repairing Dressing Tool. The TDS value of pure water is generally 0, that of spring water is between 20-40, and that of tap water is around 3 hundred or even greater.
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