说明：  这是一款arduino兼容的TDS传感器，用于测量水的TDS值，TDS数值可反应水的洁净程度，可应用于生活用水、水培等领域的水质检测。 TDS (Total Dissolved Solids)，中文名：总溶解固体，又称溶解性固体总量，表明1升水中溶有多少毫克溶解性固体。一般来说，TDS值越高，表示水中含有的溶解物越多，水就越不洁净。因此，TDS值的大小，可作为反映水的洁净程度的依据之一。
(This is an Arduino compatible TDS sensor used to measure the TDS value of water. The TDS value can reflect the cleanliness of water and can be applied to water quality testing in areas such as domestic water use and hydroponics. TDS(Total Dissolved Solids), Chinese name: Total dissolved solids, also known as total soluble solids, shows how many milligrams of soluble solids are dissolved in 1 litre of water. In general, the higher the TDS value, the more dissolved substances contained in the water, the more unclean the water. Therefore, the size of the TDS value can be used as one of the grounds for reflecting the cleanliness of water.)