A
Anonymous
Apr 05, 2026
Rating: 5/5
Great for Hydroponics
Works perfectly with my ESP32 setup. Readings are consistent and stable over time.
Description
TDS Sensor Module for Dissolved Solids Water Quality Testing, Compatible with 51/STM32
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Measurement Range | 0-1000 ppm |
| Input Voltage | 3.3V - 5.5V DC |
| Output Signal | Analog Voltage (0-2.3V) |
| Operating Temperature | 0°C to 50°C |
| Interface Type | PH2.0-3Pin |
| Probe Length | 58mm |
| Accuracy | ±10% F.S. |
| Probe Material | Titanium Alloy |
| MCU Compatibility | 51, STM32, Arduino, ESP32 |
| PCB Dimensions | 42mm x 32mm |
5 reviews
A
Anonymous
Mar 21, 2026
Rating: 5/5
Accurate readings
Compared with lab results and it was surprisingly close for a consumer module.
A
Anonymous
Mar 18, 2026
Rating: 5/5
Easy to integrate
Library examples helped me get started within minutes. Highly recommended.
A
Anonymous
Mar 05, 2026
Rating: 4/5
Good value
Calibration needed but works well for the price point. Good for hobby projects.
A
Anonymous
Feb 02, 2026
Rating: 3/5
Probe cable short
Functionality is fine but wish the cable was longer for my specific tank setup.
5 FAQ
Q: How do I calibrate it?
A: Use a standard TDS solution and adjust the potentiometer or code offset.
Q: What is the power consumption?
A: Typically less than 5mA during operation.
Q: Does it work with Arduino Uno?
A: Yes, it is compatible with 5V logic boards like the Uno.
Q: Can it measure saltwater?
A: It is designed for fresh water monitoring. High salinity may damage it.
Q: Is this waterproof?
A: The probe is waterproof, the module board is not. Keep the board dry.
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