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Home / Sensors / SevenStarBug Analog TDS Sensor Water Conductivity Sensor Water Quality Detection Liquid Testing Module

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Brand SevenStarBug
Model Number SSB-TDS-01
Output Type Analog Signal
Operating Voltage 3.3V - 5.5V DC
Measurement Range 0 - 1000 ppm
Interface Gravity Interface / PH2.0-3Pin
Probe Material Titanium Alloy
Compatible Platforms Arduino, Raspberry Pi, ESP32
Application Hydroponics, Aquariums, Water Quality Monitoring
Cable Length 1.5 meters

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 3/5

Works well but needs frequent cleaning

The sensor works as described, but in high-mineral water, the probe gets coated quickly. You need to clean it weekly to maintain accuracy.

A

Anonymous

Mar 18, 2026

Rating: 4/5

Easy to code for

Found plenty of sample libraries online for this module. The analog output is smooth and easy to read with basic ADC conversion.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Good accuracy after calibration

Took a little time to calibrate properly using standard solutions, but once set up, it works reliably for monitoring my aquarium water quality.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Excellent for student projects

Bought five of these for our university environmental science lab. They are affordable and provide data accurate enough for educational purposes.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Robust build quality

The titanium probe feels very durable. I've had it submerged in my nutrient tank for three weeks with no signs of corrosion or drift.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect for my hydroponic setup

This sensor integrates seamlessly with my Arduino controller. The readings are consistent and match my handheld meter closely. Great value for DIY projects.

5 FAQ

Q: Is this sensor waterproof or just the probe?

A: The probe is designed for submersion in liquid, but the electronic module board itself is not waterproof and should be kept dry or housed in a protective enclosure.

Q: How long is the warranty period?

A: This product comes with a standard 12-month manufacturer warranty covering defects in materials and workmanship under normal use.

Q: What is the maximum temperature the water can be for accurate reading?

A: For optimal accuracy, the water temperature should be between 0°C and 50°C. Extreme temperatures may affect the conductivity reading slightly.

Q: Can I use this with a 3.3V microcontroller?

A: Yes, the sensor operates within a voltage range of 3.3V to 5.5V, making it fully compatible with 3.3V logic boards like the ESP32 or Raspberry Pi.

Q: Does this come with calibration powder?

A: No, the package includes the sensor module and probe only. Standard TDS calibration solutions must be purchased separately for accurate initial setup.

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