Description
Reviews
| 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 Material | Food Grade Titanium Alloy |
| Working Temperature | 0°C to 50°C |
| PCB Dimensions | 42mm x 32mm |
| Calibration | Software Adjustable via Code |
| Application | Hydroponics, Aquariums, Drinking Water |
Anonymous
Mar 17, 2026
Rating: 5/5
Reliable for aquarium monitoring
I integrated this into my smart aquarium system using an ESP32. It has been running for three weeks without drift. The titanium probe seems durable and resistant to corrosion.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for my hydroponic setup
This TDS sensor module works flawlessly with my Arduino Uno. The analog output is stable, and the readings match my handheld tester very closely after calibration. Great value for DIY projects.
Anonymous
Mar 12, 2026
Rating: 5/5
Great for university projects
Used this for my final year project on water quality monitoring. It interfaces easily with STM32 boards. The price point is excellent for students on a budget.
Anonymous
Mar 06, 2026
Rating: 4/5
Solid performance
Works as advertised. The analog signal is clean, but make sure you use a good ADC if you need high precision. For general monitoring, it is more than sufficient.
Anonymous
Mar 02, 2026
Rating: 5/5
Exceeded expectations
Very happy with this purchase. The build quality feels premium compared to other cheap sensors I've tried. It handles the humid environment of my grow tent without issues.
Anonymous
Mar 01, 2026
Rating: 4/5
Good sensor, needs careful calibration
The hardware quality is solid. It took me a little while to get the calibration code right for my specific water source, but once set up, it provides consistent data. Documentation could be slightly better.
Q: Can I use this directly with a 3.3V logic microcontroller?
A: Absolutely. The module operates within a 3.3V to 5.5V range, making it fully compatible with 3.3V systems like the STM32 or ESP8266.
Q: Does this module come with the waterproof probe included?
A: Yes, the package includes both the signal processing module and the TDS detection probe with a waterproof connector.
Q: Do you provide sample code for Arduino?
A: Yes, we provide open-source library examples and calibration scripts on our GitHub repository, linked in the product manual PDF.
Q: Is the probe safe for use in drinking water tanks?
A: Yes, the probe is made from food-grade titanium alloy, which is safe for contact with drinking water and does not leach harmful substances.
Q: What is the accuracy of the sensor out of the box?
A: The sensor provides a raw analog voltage proportional to TDS. For accurate ppm readings, software calibration using standard solution values is required, typically achieving ±10% accuracy after calibration.
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