Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Output Signal	Analog Voltage (0-2.3V)
Operating Voltage	3.3V - 5.5V DC
Measurement Range	0 - 1000 ppm
Compatibility	Arduino, STM32, ESP8266, ESP32
Interface Type	PH2.0-3Pin Connector
Probe Length	Approx. 65mm
Cable Length	Approx. 45cm
Accuracy	+/- 10% F.S.
Working Temperature	0°C to 50°C
Application	Hydroponics, Aquariums, Water Purification

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Easy integration with STM32

I was worried about compatibility with my STM32 board, but it connected easily. The voltage divider on the module handles the 3.3V logic perfectly. Great component for IoT water monitoring systems.

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect for my hydroponic setup

This sensor module works flawlessly with my Arduino Uno. The analog output is stable, and the calibration process was straightforward using the provided library examples. Highly recommended for DIY water quality projects.

Anonymous

Mar 11, 2026

Rating: 4/5

Reliable for fresh water

Works great in freshwater applications. Do not use this in saltwater pools as it is designed for dissolved solids in fresh water only. For its intended purpose, it is accurate and reliable.

Anonymous

Mar 10, 2026

Rating: 4/5

Good value but needs calibration

The build quality is solid for the price. Out of the box, the readings were slightly off, but after calibrating with a standard solution, it matches my professional meter closely. Just remember to let it warm up before reading.

Anonymous

Mar 06, 2026

Rating: 5/5

Great for student projects

Bought five of these for a high school environmental science class. They are durable enough for students to handle and provide real-time data that helps visualize water quality concepts effectively.

Anonymous

Mar 02, 2026

Rating: 3/5

Decent but cable is short

The sensor itself works well, but the 45cm cable was a bit short for my large aquarium tank. I had to extend it myself. Otherwise, the data consistency is good once calibrated.

5 FAQ

Q: Is the library available for PlatformIO?

A: Yes, the sensor is compatible with popular Arduino libraries which work seamlessly in PlatformIO. You can search for 'TDS Sensor' in the library manager.

Q: Can I use this with a Raspberry Pi?

A: Yes, but since the Raspberry Pi lacks analog inputs, you must connect this sensor through an external ADC (Analog-to-Digital Converter) like the MCP3008.

Q: What is the lifespan of the probe?

A: With proper care and regular cleaning, the probe typically lasts 1 to 2 years depending on usage frequency and water conditions. Avoid touching the metal pins directly.

Q: Does this come with calibration powder?

A: No, the module does not include calibration solutions or powder. You will need to purchase standard TDS calibration solutions separately for accurate measurements.

Q: Is this sensor waterproof?

A: The probe tip is waterproof and designed for submersion, but the electronic module board and connector must remain dry. Only immerse the probe part.

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