The Wireless Colorimeter & Turbidity Sensor simultaneously measures the absorbance and transmittance of six different wavelengths. The sensor can be used to study Beer's Law (absorbance vs. concentration), enzyme activity, photosynthesis, and the rates of chemical reactions (absorbance vs. time). 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.

When used with our ezSample snap vials for water quality testing, chemical concentrations can be determined using the built-in calibration curves for Ammonia, Nitrate, Phosphate, Chlorine and Iron. Values are reported in Parts Per Million (ppm) or grams per liter (g/L). These chemical tests follow USGS protocols for determining these ions in the field. Select the Buying Guide tab to explore ezSample snap vials.

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