Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Output Signal | Analog Voltage (0-5V) |
| Operating Voltage | 3.3V - 5V DC |
| Measurement Range | 0 - 1000 ppm TDS |
| Interface Type | PH2.0-3Pin Connector |
| Compatible Boards | Arduino, Raspberry Pi, ESP32 |
| Probe Material | Titanium Alloy Electrodes |
| PCB Dimensions | 42mm x 32mm x 14mm |
| Working Temperature | 0°C to 50°C |
| Application | Hydroponics, Aquariums, Water Purification |
| Package Includes | 1x TDS Sensor Module, 1x TDS Probe, 1x Connection Cable |
Anonymous
Mar 27, 2026
Rating: 5/5
Robust and reliable
I've tested several TDS modules, and this one offers the best signal stability. The PCB layout is clean, and the connector fits securely. Highly recommended for anyone developing industrial control prototypes.
Anonymous
Mar 24, 2026
Rating: 4/5
Good value but needs calibration
The hardware quality is solid for the price. However, be prepared to spend some time calibrating it with standard solutions to get accurate ppm readings. Once calibrated, it works as expected for educational projects.
Anonymous
Mar 22, 2026
Rating: 3/5
Works well after initial troubleshooting
Initially, my readings were fluctuating wildly. After adding a capacitor across the power lines as suggested in a forum, the noise disappeared. It works fine now, but beginners might find the noise issue confusing without prior knowledge.
Anonymous
Mar 21, 2026
Rating: 5/5
Great for aquarium monitoring
I built a custom water quality monitor for my reef tank. This sensor provides consistent data when paired with an ESP32. The titanium probe seems durable and resistant to corrosion compared to cheaper alternatives.
Anonymous
Mar 09, 2026
Rating: 4/5
Excellent learning tool
Used this for my final year engineering project on IoT water systems. The documentation online is helpful, and the analog output makes it easy to read with any microcontroller. Deducted one star because the cable could be longer.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for my hydroponic setup
This module integrated seamlessly with my Arduino Uno. The analog readings are stable after a brief calibration period. I'm using it to monitor nutrient levels in my lettuce garden, and it has been reliable for weeks.
Q: What is the maximum depth the probe can be submerged?
A: The probe can be fully submerged up to the junction where the cable meets the probe body. Do not submerge the cable connection point or the wire itself to prevent water ingress and short circuits.
Q: Can I use this with a 3.3V logic board like ESP32?
A: Yes, the module operates on a voltage range of 3.3V to 5V. The analog output will scale accordingly, so you can directly connect it to the ADC pins of an ESP32 or similar 3.3V microcontrollers.
Q: Does this come with calibration powder or solution?
A: No, the package includes the sensor module and probe only. You will need to purchase standard TDS calibration solutions (usually 1413 ppm or 342 ppm) separately to ensure accurate measurements.
Q: How often does the probe need replacement?
A: Under normal usage conditions, the titanium alloy probe is quite durable and can last 6 to 12 months. Replacement frequency depends on the water chemistry and how frequently the sensor is cleaned and maintained.
Q: Is this sensor waterproof or just the probe?
A: Only the probe tip is designed to be submerged in water. The main PCB board and electronics are not waterproof and should be kept dry or housed in a protective enclosure.
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