DFROBOT Gravity: Analog TDS Sensor for Arduino | Total Dissolved Solids Meter | Water Quality Sensor Compatible with Arduino (OG)

The DFRobot Gravity Analog TDS Sensor is a reliable and easy-to-use solution for measuring Total Dissolved Solids (TDS) in water. It is designed for water quality monitoring applications such as drinking water analysis, hydroponics, aquaculture, and environmental testing. The sensor outputs an analog voltage proportional to the TDS value, making it fully compatible with Arduino and other microcontroller platforms.

Technical Specifications:

• Measurement Parameter: Total Dissolved Solids (TDS)
• Measurement Range: 0 – 1000 ppm (typical, expandable with calibration)
• Operating Voltage: 3.3 – 5.5 V
• Output Signal: Analog voltage
• Probe Type: Waterproof TDS probe
• Temperature Compensation: Supported (via software)
• Interface: Gravity (3-pin: VCC, GND, Signal)

Features:

• Accurate and stable TDS measurement
• Plug-and-play Gravity interface (no soldering required)
• Waterproof probe suitable for long-term immersion
• Supports software temperature compensation
• Low power consumption
• Fully compatible with Arduino, ESP32, Raspberry Pi (ADC required)

Applications:

• Drinking water quality testing
• Hydroponics and smart farming
• Aquaculture and fish tanks
• Water purification systems
• Environmental monitoring projects
• IoT-based water quality solutions