Light logger sensor NUL-204

Light logger sensor NUL-204

This sensor is very versatile with applications in many areas of the natural sciences. It can be used to study photosynthesis in biology, light-emitting chemical reactions in chemistry, the effect of changing voltage on a light-bulb’s output in physics and more.

This sensor measures illumination with three ranges; it can be used in low light environments such as in a classroom, or high light environments as in daylight outdoors.

With both fast and slow modes, it can be used to measure fast light changes such as those produced by light bulbs connected to an AC supply, as well as the almost steady levels outside on a sunny day.

The light sensor in located in a plastic box just behind an access hole.


Distributors in the United States, Canada, and other countries.
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  • Used in the fields of Chemistry, Physics, Biology, Environmental Science, etc.
  • The sensor is pre-calibrated at the factory.
  • Experiment duration: 50 milliseconds to 31 days.


Sensor Guide and Example labs

Sensor Guide and Example Labs

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


How Incandescent Light Bulbs Work? P-11
Physics Experiment (includes also current logger sensor)
Colors of Light P-40
Physics Experiment
Light and Shadow P-41
Physics Experiment
Light and Dark Colors P-42
Physics Experiment
Resistance of a Light Bulb P-54 
Physics Experiment (Includes also resistance logger sensor)
 Rayleigh Scattering E-6
Environmental science Experiment (includes also UVA and UVB logger sensors)

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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