| Core | Arduino |
|---|---|
| Type | Sensor |
| Brand | Unbranded |
Check the listing for details. Analog TDS Sensor/ Meter for Arduino - DC3.3V-5.5V - PPM Meter. Condition: New. Listed at 9.50 USD. TDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved in one liter of water. In general, the higher the TDS value, the more soluble solids dissolved in water, and the less clean the water is.