The TDS Meter Module (Total Dissolved Solids) is a high-precision liquid quality analytical sensor designed for water purity monitoring, hydroponics management, and environmental fluid testing. Operating on an electrochemical conductivity principle, this module accurately quantifies the concentration of dissolved inorganic salts, organic compounds, and heavy metal ions present in water. Built with a durable waterproof probe and an analog signal conditioning board, it provides a stable 0V to 2.3V output directly proportional to the solution's TDS level (PPM). Engineered for broad 3.3V to 5.0V system compatibility, it integrates effortlessly with Arduino, ESP32, and Raspberry Pi—making it an ideal choice for smart water purifiers, automated aquaponics systems, and industrial fluid quality diagnostics, brought to you by FamePhase Electronic Accessories.