DFRobot Gravity Analog TDS Sensor module

Gravity Interface Plug-and-Play Design: Standardized Gravity 3-pin interface allows quick, plug-and-play wiring with Arduino and other microcontrollers without soldering.

3.3V - 5.5V Wide Power Rail: Fully compatible with both 3.3V logic (ESP32, Raspberry Pi) and 5V systems (Arduino UNO) with stable analog voltage output.

Waterproof Sensing Probe: Equipped with a durable, waterproof TDS probe designed for continuous liquid immersion and long-term water purity testing.

AC Excitation Signal: Utilizes an AC signal source to drive the probe, effectively preventing probe polarization and reducing electrolysis for higher measurement accuracy.

Wide 0 - 1000 ppm Measurement Spectrum: Accurately quantifies Total Dissolved Solids to evaluate water cleanliness, filter effectiveness, and nutrient concentration.

Housing & Probe Material: Premium PCB board components with a waterproof polymer probe body and metallic contact pins.

Technical Specifications:

Input Voltage: 3.3V - 5.5V DC.

Output Voltage: 0.0V - 2.3V Analog.

Measurement Range: 0 - 1000 ppm.

Accuracy: ± 10% F.S. (25°C).

Color: Black Circuit Board with Red and Black Cable Assemblies.

Usage Advice: Connect the Gravity signal cable to your controller's analog input pin; keep the circuit board completely dry while submerging only the waterproof probe into liquid.

Maintenance: Rinse the probe tip with distilled or deionized water after testing high-concentration solutions; dry thoroughly before storage.

Essential IoT Water Quality Transducer: Position as a top-choice analog sensor module for smart hydroponics, aquarium monitoring, RO system testing, and environmental water analysis projects.

Highlight Plug-and-Play Precision: Emphasize the Gravity standard plug-and-play interface and AC excitation drive that prevents electrode polarization during continuous monitoring.

Recommended Cross-Sell Add-ons: Pair with Analog TDS Water Quality/Conductivity probe, Arduino TDS Water Conductivity/Quality Sensor, 0-14pH Electrode Probe Sensor BNC Connector, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Water Quality Sensors collection page as your featured analog TDS measurement module.