Wireless Light Sensor

The Wireless Light Sensor (PS-3213) is a coin cell battery-powered wireless sensor that connects to a computer or tablet device through Bluetooth. The sensor measures light through two apertures. The Spot Light Aperture measures
red-green-blue (RGB), and white. The Ambient Light Aperture measures illuminance (measured in lux or lumens per square meter), Photosynthetically Active Radiation (PAR) in sunlight, and solar irradiance (in watts per square meter). The Ambient Light Aperture also measures UVA (ultra-violet A) and UVB (ultra-violet B) allowing ultra-violet index (UVI) to be calculated.PASCO Data Collection Software will display and analyze the measurements from the sensor.

Available on backorder

Connects directly to your devices via Bluetooth® and covers a wide range of applications.

This is the most versatile and most cost-effective light sensor PS-3213.

The Wireless Light Sensor features two separate apertures – one for ambient measurements and one for directional light measurements.

The ambient sensor measures illuminance, UVA, UVB, and UV Index. The spot aperture measures the light level and has color detection with channels for the relative intensity of Red, Green, Blue light and the ability to sum them for the level of White light.

In addition, PAR and irradiance are available as calculated measurements in PASCO Capstone (version 1.8 or later) and SPARKvue (version 2.6 or later) software.

Note:  The Wireless Light Sensor is not recommended for diffraction studies using our Optics Systems.  For that, we recommend our PASPORT High Sensitivity Light Sensor or ScienceWorkshop Light Sensor.

Typical Applications

Light measurements are key to the study of solar energy, modeling planetary motion, polarization, reflectivity, and the inverse square law.

  • Studying solar energy
  • Monitoring UV light levels and ways to limit exposure.
  • Reflection, absorption, and transmission of light through clear, opaque, and different colored translucent mediums.
  • Investigating polarization and reflectivity
  • Modeling planetary motion
  • Verifying the inverse square law

Special Features

  • No interface is needed! Connects directly to your computers, Chromebooks, tablets, and smartphones.
  • Simplicity: just pair and go, no cables and adapters to manage
  • On-board memory that allows the sensor to function as an independent datalogger.
  • The variable sampling rate for capturing small fast changes or experiments that run for hours, days, or weeks.
  • Features convenient Bluetooth wireless connectivity and the long-lasting coin cell battery


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