Attributes

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
Interface Type	Analog Pin Compatible
Compatible Platforms	Arduino, STM32, ESP8266, ESP32
Probe Material	Titanium Alloy Electrodes
Working Temperature	0°C to 50°C
PCB Dimensions	32mm x 14mm
Calibration	Requires Two-Point Calibration
Application	Hydroponics, Aquariums, Water Purifiers

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Reliable and compact

Small form factor makes it easy to fit into tight enclosures. The voltage output scales linearly with TDS levels as expected. Very satisfied with the purchase and fast shipping.

Anonymous

Mar 29, 2026

Rating: 5/5

Great addition to aquarium monitor

I integrated this into my custom aquarium controller. It reads consistently and the titanium probes seem resistant to corrosion. The documentation provided by the seller was helpful for the code implementation.

Anonymous

Mar 27, 2026

Rating: 4/5

Good value, needs careful calibration

The hardware is solid and connects easily to STM32 boards. Just be aware that you must calibrate it properly using standard solutions to get accurate readings. Once calibrated, it tracks TDS changes well.

Anonymous

Mar 18, 2026

Rating: 4/5

Works as described for school project

Used this for a university environmental science project. It paired easily with an ESP32. The only downside is that the probe cable is a bit short, but I extended it without issues. Good accuracy for the cost.

Anonymous

Mar 12, 2026

Rating: 3/5

Decent but requires noise filtering

The sensor itself is fine, but I had to add some software averaging and a capacitor on the analog line to reduce noise in the readings. Once filtered, the data is usable. Not plug-and-play for beginners.

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect for my hydroponic setup

This sensor module works flawlessly with my Arduino Mega. The analog output is stable after calibration, and the build quality feels robust for the price. Highly recommended for DIY water monitoring projects.

5 FAQ

Q: Is the probe waterproof for submersion?

A: The probe tip is designed for submersion in water. However, please ensure the electronic module board itself remains dry and is housed in a protective enclosure.

Q: Do you provide sample code for STM32?

A: Yes, we provide a GitHub repository link in the user manual containing example libraries and code snippets for both Arduino and STM32 HAL environments.

Q: Does this module come with the probe attached?

A: Yes, the module comes with the TDS probe pre-connected via a waterproof connector. It is ready to use upon arrival.

Q: What calibration solutions do I need?

A: For best results, we recommend using standard TDS calibration solutions, typically 1413 ppm and 12.88 mS/cm solutions, to perform a two-point calibration.

Q: Can I use this directly with a 5V Arduino Uno?

A: Absolutely. The module operates within the 3.3V to 5.5V range, making it fully compatible with the 5V logic of the Arduino Uno.

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