Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	3.3V - 5.5V DC
Output Signal	Analog Voltage (0-2.3V)
Measurement Range	0 - 1000 ppm
Accuracy	+/- 10% F.S.
Response Time	< 5 Seconds
Probe Length	60 mm
Interface Compatibility	Arduino, STM32, ESP8266, ESP32
Working Temperature	0°C to 50°C
Cable Length	1.5 Meters
Waterproof Rating	IP67 (Probe Only)

6 reviews

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect for my hydroponics setup

This TDS sensor module works flawlessly with my Arduino Uno. The readings are consistent and match my handheld meter within a reasonable margin. Setup was straightforward using the provided library examples.

Anonymous

Mar 20, 2026

Rating: 5/5

Great documentation support

Not only is the sensor reliable, but the online resources and example codes made integration a breeze. It detected changes in water quality instantly during my tests.

Anonymous

Mar 20, 2026

Rating: 5/5

Easy integration with STM32

I was worried about compatibility with my STM32 board, but it connected without any issues. The analog output is stable, and the code required minimal adjustment. Highly recommended for DIY projects.

Anonymous

Mar 19, 2026

Rating: 4/5

Good value but needs calibration

The hardware quality is solid for the price. However, you must calibrate it with standard solutions before getting accurate results. Once calibrated, it performs well for general monitoring tasks.

Anonymous

Mar 06, 2026

Rating: 4/5

Solid performance for the price

Using this to monitor rainwater collection. It provides good trend data even if absolute precision varies slightly. The cable length is sufficient for most tank setups.

Anonymous

Mar 01, 2026

Rating: 3/5

Decent but probe feels fragile

The electronics work fine, but the probe casing feels a bit thin. I am careful when handling it to avoid damage. Readings are okay for hobby use but maybe not for critical industrial applications.

5 FAQ

Q: Does this module come with calibration powder?

A: No, the module does not include calibration powder. We recommend purchasing standard TDS calibration solutions separately for best accuracy.

Q: How often should I clean the probe?

A: For optimal performance, we suggest gently cleaning the probe with distilled water and a soft cloth every 2-4 weeks, depending on the turbidity of the water being tested.

Q: Can this be used directly in saltwater aquariums?

A: This sensor is designed primarily for fresh water and hydroponics. High salinity levels in saltwater may affect accuracy and potentially degrade the probe faster.

Q: What is the maximum depth the probe can be submerged?

A: The probe itself is waterproof up to IP67 ratings, but the junction where the cable meets the probe should not be fully submerged. We recommend keeping the connection point above the water line.

Q: Is there a digital output version available?

A: This specific model outputs an analog signal. If you require a digital interface, you will need to use the ADC pins on your microcontroller or an external ADC module.

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