This TDS (Total dissolved solids) meter is designed into size of a marker pen to reflect water purity by measuring combined content of all inorganic and organic substances contained in water on molecular scale. Its minimalism style and glossy seamless outer case is water-proof, easy to clean, user-friendly and highly portable. The translucent pen cap is designed for both probe protection and water sample pick-up. Inserting the meter into a cap of water and pressing TDS button for the result figure, the reading will stabilize in 3 seconds, and the operation is simply intuitional. This product applies to fast check of any tap water, pure water quality for daily usage. It helps to arouse the public awareness on water safety in contaminated residential area.

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