The DFRobot Gravity Analog TDS Sensor/Meter for Arduino is designed to measure the Total Dissolved Solids (TDS) in liquids, offering an easy-to-use solution for water quality monitoring. With a range of 0 to 1000 ppm, it is ideal for applications such as water purification, aquariums, and environmental testing. The sensor operates using an analog output, which can be easily integrated into Arduino or other microcontroller-based systems for real-time data collection. It provides accurate readings of dissolved salts, minerals, and metals in water. The compact, durable design ensures long-lasting performance, making it a reliable tool for various water quality applications.