Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Measurement Range | 0-1000 ppm TDS |
| Operating Temperature | 0°C to 50°C |
| Accuracy | ±2% Full Scale |
| Power Supply | 3.3V - 5.5V DC |
| Output Signal | Analog Voltage / UART |
| Probe Material | Stainless Steel 316L |
| Cable Length | 1.5 Meters |
| Waterproof Rating | IP68 (Probe Only) |
| Response Time | < 3 Seconds |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
Anonymous
Mar 31, 2026
Rating: 5/5
Reliable for continuous monitoring
I am using this in a commercial lettuce grow setup. It has been running 24/7 for a month now. The online temperature compensation keeps the data consistent regardless of ambient changes. Very satisfied.
Anonymous
Mar 28, 2026
Rating: 4/5
Solid component for the price
For the cost, you really can't beat this module. It's not laboratory grade, but for hobbyist aquarium or pool monitoring, it provides more than enough precision. Just ensure you keep the probe clean.
Anonymous
Mar 25, 2026
Rating: 3/5
Works well but cable is stiff
The sensor itself performs as advertised regarding TDS detection. However, the cable is quite rigid, which made routing it through my tight filtration cabinet a bit challenging. Otherwise, no complaints about performance.
Anonymous
Mar 23, 2026
Rating: 4/5
Good value, needs calibration
The build quality is solid and the stainless steel probe feels durable. Out of the box, it was slightly off, but after calibrating with a standard solution, the readings are very accurate. Great for hydroponics.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for my reef tank monitoring system
This sensor module integrated seamlessly with my ESP32 setup. The temperature compensation feature works great, providing stable readings even when the heater cycles on and off. Highly recommended for DIY aquarium projects.
Anonymous
Mar 05, 2026
Rating: 5/5
Easy to interface with Arduino
Documentation was clear enough to get this running in under an hour. The analog output is smooth, and I haven't seen any noise issues. It's been running in my sump for three weeks without any drift.
Q: How often does the probe need cleaning?
A: For optimal performance, we suggest inspecting and gently cleaning the probe every 2-4 weeks depending on the water quality. Biofilm or mineral buildup can affect reading accuracy over time.
Q: Is this sensor suitable for saltwater aquariums?
A: Yes, the probe is made of 316L stainless steel which is resistant to corrosion in saltwater environments. However, please note the measurement range is optimized for typical TDS levels found in reef tanks.
Q: Can I bury the entire unit underwater?
A: Only the probe tip and the cable are rated IP68 for submersion. The main circuit board module must be kept dry and housed in a waterproof enclosure if placed near water sources.
Q: Does this module come with a calibration solution?
A: No, the module does not include a calibration solution. We recommend purchasing a standard TDS calibration solution separately to ensure the highest accuracy for your specific application.
Q: What is the voltage requirement for the logic level?
A: The sensor operates on a wide voltage range of 3.3V to 5.5V DC, making it directly compatible with both 3.3V and 5V microcontrollers like the ESP32 and Arduino Uno without needing a level shifter.
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