This TDS sensor kit gives analog output which is compatible with most microcontrollers, such as Arduino, With Arduino controllers, it is easy to build a TDS detector measuring the TDS value of liquid with limited budget. A professional instrument have high accuracy and communicate with a control system, but they are quite expensive. But it is not easy to talk a control system for real-time monitoring of water quality.
Therefore, the TDS value can be used as one reference point for reflecting the cleanliness of water.Ī TDS pen is a widely used piece of equipment to measure TDS value. In general, the higher the TDS value, the more soluble solids are dissolved in water, and the less clean the water is. TDS (Total Dissolved Solids) indicates how many milligrams of soluble solids are dissolved in one liter of water. Analog TDS Sensor Meter for Arduino / ESP32 / Raspberry Pi - DFRobot Wiki