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Wireless Colorimeter & Turbidity Sensor

Part code – PS-3215

The Wireless Colorimeter & Turbidity Sensor simultaneously measures the absorbance and transmittance of six different wavelengths. After a simple calibration, students can quickly begin viewing live measurements as they materialize across the visible spectrum at 650 nm (red), 600 nm (orange), 570 nm (yellow), 550 nm (green), 500 nm (blue), and 450 nm (violet).
This sensor also functions as a high-quality turbidimeter for water quality analysis. Rather than simply measuring transmitted light, the Wireless Colorimeter and Turbidity Sensor measures light scattered at a 90 degree angle from the sample, resulting in accurate and repeatable measurements. Additionally, the internal housing for the cuvette is opaque, which limits ambient light interference to preserve accuracy.


  • Stabilized light source for consistent readings
  • Measures six different wavelengths simultaneously
  • PASCO software displays the absorbance & transmittance at each wavelength in the appropriate color
  • Quick and easy calibration
  • Functions as both a colorimeter and turbidimeter
  • Wireless design enables data collection in the field

What is in the box?

  • Wireless Colorimeter and Turbidity Sensor
  • 2x Cuvette Rack
  • 4x Cuvette with Cap, smooth
  • 6x Cuvette with Cap, lined
  • Ampoule Cap
  • 100 NTU Calibration Solution

Software Required –

  • SPARKvue or PASCO Capstone Software

Required Item for Water Quality Measurements –

  • ezSample Snap Vial Test Kit

Education Resource Information

Topics covered –

  • Beer’s Law (absorbance vs. concentration)
  • Measuring reaction rates using absorbance vs. time
  • Turbidity testing and colorimetric analysis in the field
  • Determining the concentration of an unknown solution
  • Comparing the turbidity of water samples
  • Osmosis
  • Plant Pigments
  • Analysis of Food Dyes in Sports Drinks
  • Investigating the Copper Content of Brass
  • Light, Color, And Concentration
  • Separating Food Dyes Using Chromatography
  • Empirical Formula
  • Measuring The Speed Of A Reaction