TDS (Total dissolved solids), are inorganic compounds found in water, such as salts, heavy metals, and some traces of organic compounds that dissolve in water. Some of these compounds or substances can be essential for life, however, it can be harmful when taking more than the desired amount that the body needs.

TDS (Total Dissolved Solids) indicates how many milligrams of soluble solids are dissolved in one liter of water. In general, the higher the TDS value, the more soluble solids are dissolved in water, and the less clean the water is. Therefore, the TDS value can be used as one reference point for reflecting the cleanliness of the water. This can be applied to domestic water, hydroponic and other fields of water quality testing and monitoring.

Features:

• Input Voltage: 3.3/5V
• Output Voltage: 0 ~ 2.3V
• Working Current: 3 ~ 6mA
• TDS Measurement Range: 0 ~ 1000ppm
• Power indicating Led