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Home / Computer Hardware, Monitors & Peripherals / TDS Sensor Module, Analog Signal, Water Quality Testing and Liquid Conductivity Detection, Development Board Accessory
Computer Hardware, Monitors & Peripherals

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Input Voltage 3.3V - 5.5V DC
Output Signal Analog Voltage (0-2.3V)
TDS Measurement Range 0 - 1000 ppm
Operating Temperature 0°C - 50°C
Probe Cable Length Approximately 45cm
Interface Type PH2.0-3Pin Connector
PCB Material FR-4 Fiberglass
Accuracy ±10% F.S.
Compatible Platforms Arduino, Raspberry Pi, ESP32
Package Weight 25 grams

5 reviews

A

Anonymous

Apr 04, 2026

Rating: 3/5

Decent but needs tuning

Works okay but the documentation was a bit sparse. Had to find code examples online.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Essential for water projects

Verified purchase. Using it to monitor nutrient levels. Very satisfied.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect for Hydroponics Monitor

Works great with my ESP32 setup. Readings are consistent after calibration.

A

Anonymous

Feb 01, 2026

Rating: 4/5

Good value sensor

Does the job well. Just make sure you calibrate it with standard solution first.

A

Anonymous

Jan 19, 2026

Rating: 5/5

Reliable Analog Output

Clean signal, easy to read with ADC. No noise issues on my breadboard.

5 FAQ

Q: Can this be used with 3.3V logic?

A: Yes, it operates within 3.3V to 5.5V range.

Q: Does it come with calibration powder?

A: No, calibration solutions are sold separately.

Q: Is the probe waterproof?

A: The probe is waterproof, but the module board itself is not.

Q: What is the response time?

A: Typically stabilizes within 30 seconds in stable water.

Q: Can it measure saltwater?

A: It measures conductivity, so yes, but high salinity may exceed range.

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