Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	TS-300B
Operating Voltage	5V DC
Output Signal	Analog (0-5V) and Digital (TTL)
Detection Range	0 to 4000 NTU (Approximate)
Interface Type	Compatible with Arduino, Raspberry Pi, STM32
Probe Material	Corrosion-resistant Plastic and Stainless Steel
Cable Length	1.5 meters
Response Time	< 1 second
Included Software	Sample C++ Code for Arduino IDE
Application	Water quality monitoring, sewage detection, aquariums

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Robust and reliable

We bought five of these for our makerspace workshop. They have held up well under frequent use by students. The build quality feels solid.

Anonymous

Mar 29, 2026

Rating: 3/5

Works well but cable is short

The detection accuracy is good for murky water, but I wish the probe cable was a bit longer for larger tanks. Had to extend it myself.

Anonymous

Mar 27, 2026

Rating: 4/5

Good sensitivity, needs calibration

The sensor is quite sensitive to changes in water clarity. You definitely need to calibrate it with known samples for accurate NTU values, but for relative measurements, it is excellent.

Anonymous

Mar 18, 2026

Rating: 5/5

Great for university projects

Used this for my final year environmental engineering project. It interfaced perfectly with my Arduino Uno. The digital output threshold is adjustable via the potentiometer.

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect for my hydroponics project

This sensor module worked straight out of the box. The included code made calibration very easy, and the analog readings are stable. Great value for the price.

Anonymous

Mar 10, 2026

Rating: 4/5

Easy to program

As someone new to sensors, I found the provided library and example code very helpful. It got me up and running in less than an hour.

5 FAQ

Q: Can I get the source code if I lose the SD card?

A: Absolutely. The code is open source and can be downloaded directly from our GitHub repository linked in the product manual PDF.

Q: Does this work with Raspberry Pi?

A: Yes, it works with Raspberry Pi. However, since the Pi uses 3.3V logic and the sensor outputs 5V, you may need a voltage divider or an ADC hat for the analog pin.

Q: What is the accuracy in NTU?

A: This is a cost-effective module intended for relative turbidity measurement. While it correlates well with NTU, for laboratory-grade precision, professional calibrated instruments are recommended.

Q: How often does the probe need cleaning?

A: For best results, we recommend wiping the optical lens of the probe with a soft cloth once a week if used continuously in dirty water to prevent biofilm buildup.

Q: Is this sensor waterproof?

A: The probe head is designed for immersion in water, but the electronic circuit board and connector are not waterproof. Please ensure only the probe is submerged.

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