Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Compatibility | Arduino UNO, Mega, Nano, ESP32 |
| Input Voltage | 3.3V - 5.5V DC |
| Output Signal | Analog 0-2.3V |
| Measurement Range | 0-1000 ppm |
| Accuracy | ±10% Full Scale |
| Probe Cable Length | 1.5 meters |
| Operating Temperature | 0°C to 50°C |
| PCB Dimensions | 45mm x 30mm x 15mm |
| Net Weight | 25 grams |
| Probe Material | Stainless Steel 304 |
Anonymous
Apr 02, 2026
Rating: 4/5
Good value but needs calibration
The sensor works well once calibrated. Out of the box readings were a bit off, but after adjusting with standard solution it is accurate. Cable could be longer.
Anonymous
Mar 03, 2026
Rating: 5/5
Perfect for school project
Used this for a science fair project on water quality. Easy to wire and plenty of tutorials online. Highly recommend for beginners.
Anonymous
Feb 17, 2026
Rating: 3/5
Probe feels fragile
Electronics work fine, but the probe coating seems delicate. Be careful when cleaning. Readings are stable though.
Anonymous
Feb 08, 2026
Rating: 5/5
Solid sensor module
Clean analog output signal. No noticeable noise in my setup. Good build quality on the PCB side.
Anonymous
Jan 19, 2026
Rating: 5/5
Great for hydroponics project
Worked perfectly with my Arduino UNO. Calibration was straightforward using the provided code examples. Monitoring my nutrient solution is much easier now.
Q: What calibration solution do you recommend?
A: We recommend using a standard 1413ppm or 342ppm TDS calibration solution for best accuracy.
Q: Can this measure saltwater conductivity?
A: It can measure conductivity in saltwater, but the ppm reading is calibrated for fresh water. Use conductivity mode for saline solutions.
Q: Is there a library available for this?
A: Yes, you can find open-source libraries on GitHub compatible with Arduino IDE for TDS sensors.
Q: Does this work with 3.3V logic boards?
A: Yes, the input voltage supports 3.3V to 5.5V, making it compatible with most 3.3V microcontrollers.
Q: Is the probe waterproof?
A: The probe is designed for submersion in liquid, but the PCB module itself is not waterproof. Keep the board dry.
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