Arduino TDS Water Conductivity/Quality Sensor

Analog Water Purity Telemetry: Measures Total Dissolved Solids (TDS) concentration to determine overall liquid purity and mineral salt density.

3.3V - 5.5V Wide Operating Range: Compatible with both 3.3V logic (ESP32, Raspberry Pi) and 5V microcontrollers (Arduino UNO/Mega) without logic shifting.

AC Excitation Signal Source: Employs an alternating current signal to drive the sensing probe, preventing electrode polarization and reducing electrolysis for extended sensor life.

Submersible Waterproof Probe: Features a durable, waterproof sensing probe with a flexible lead wire for continuous immersion in water tanks and reservoirs.

Plug-and-Play 3-Pin Interface: Equipped with a standard 3-pin header (VCC, GND, Signal) for quick, solderless breadboard and micro-controller connection.

Housing & Probe Material: Premium PCB assembly with waterproof polymer probe enclosure and metallic contact pins.

Technical Specifications:

Input Supply Voltage: 3.3V - 5.5V DC.

Output Signal: 0.0V - 2.3V Analog Voltage.

Measurement Range: 0 - 1000 ppm.

Measurement Accuracy: ±10% F.S. (25°C).

Color: Black Circuit Board with White Submersible Probe and Wire Leads.

Usage Advice: Connect the signal lead to your microcontroller's ADC pin; submerge the waterproof probe into liquid while keeping the driver circuit board completely dry.

Maintenance: Periodically rinse the probe tip with distilled or deionized water to remove mineral scale and prevent erroneous concentration readings.

Essential DIY Water Monitoring Module: Position as an indispensable, entry-level sensor module for smart hydroponics, aquarium water checking, reverse osmosis filtration, and automated liquid tracking.

Highlight AC Signal Longevity: Emphasize how the AC excitation drive prevents probe degradation over long-term monitoring, offering higher stability than basic DC resistance probes.

Recommended Cross-Sell Add-ons: Pair with DFRobot Gravity Analog TDS Sensor module, Analog TDS Water Quality/Conductivity probe, 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 core Arduino-compatible TDS sensor module.