Turbidity logger sensor NUL-231

Turbidity logger sensor


This sensor measures the reflected light that enters into a tube containing a solution. As solution turbidity is higher, more light is reflected and measured by the light sensor, located perpendicular to the light source.

The turbidity measurement units are Nephelometric Turbidity Unit (NTU).


Distributors in the United States, Canada, and other countries.
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  • Used in the fields of Chemistry, Biology, Microbiology, Earth Science, Environmental Science, Biochemistry, etc.
  • Samples are poured into cuvettes which are then placed inside the turbidity sensor for analysis. An infrared light is directed at the cuvette and it is scattered off by any suspended particles present in the sample. A photodiode positioned perpendicular to the light source loses free electrons (photoelectrons) when the scattered photons hit it, creating a readable voltage.
  • Includes Three plastic cuvettes with three lids.
  • The sensor is pre-calibrated at the factory.
  • Experiment duration: 1 second to 31 days.


Sensor Guide and Example labs

Sensor Guide and Example Labs

pdf Turbidity sensor User Guide
What is included with the sensor, Sensor Specifications, Videos and experiment examples, Technical background, Maintenance and storage, and Warranty.


Monitoring Yeast Growth B-38
Biology Experiment

Sensor Requirements

Hardware (see all)


USB-200 requirements
WIFI-200 requirements
BAT-200 requirements

Software (see all)

computer requirements

Multiple logger sensors can be used together!

Multi requirements 3

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