A Must-Have Fluorometer

In aquatic research and environmental monitoring, the ability to collect reliable, high-resolution fluorescence data is essential. The C-FLUOR™ Submersible Probes from Turner Designs offer a powerful combination of sensitivity, durability, and ease of integration— making them an ideal choice for scientists, engineers, and system integrators working in diverse aquatic environments.

Precision Meets Simplicity

C-FLUOR probes are engineered with ultra-sensitive optics and low-power electronics, enabling accurate detection of a wide range of fluorescent compounds. From algal pigments like chlorophyll, phycocyanin, and phycoerythrin to organic matter, dyes, hydrocarbons, and turbidity, C-FLUOR covers the parameters most critical to water quality and ecological studies.

Each unit is factory-calibrated and shipped with a certificate, allowing users to convert output signals directly into concentration estimates. With a linear response (R² = 0.99) and minimum detection limits as low as 0.03 μg/L for chlorophyll, the data quality is exceptional—without the need for frequent recalibration.

Built for Real-World Conditions

C-FLUOR probes are housed in titanium with a sapphire optical window, offering excellent corrosion resistance and durability. They’re rated for depths up to 2,000 meters, making them suitable for deep-sea deployments, coastal monitoring, and freshwater studies alike. Their compact form factor—just 5.2 inches long and weighing under 100 grams—makes them easy to integrate into tight spaces or multi-sensor arrays.

(Image credit: Turner Designs)

Available in analog (0–5 VDC) or digital RS-232 configurations, C-FLUOR probes support both streaming and polling modes, giving users flexibility in how they collect and manage data. With low current draw (as little as 12 mA) and fast response times (<0.6 seconds), they’re ideal for battery-powered platforms and real-time monitoring systems.

Versatility Across Applications

C-FLUOR’s broad parameter coverage makes it suitable for a wide range of applications:

  • Algal bloom detection using chlorophyll, phycocyanin, or phycoerythrin
  • Pollution tracking with crude oil and optical brightener sensors
  • Organic matter analysis via CDOM/FDOM and tryptophan
  • Tracer studies using fluorescein and rhodamine dyes
  • Turbidity monitoring for sediment transport and water clarity Whether deployed on-buoys, AUVs, ROVs, profiling systems, or handheld platforms, C-FLUOR delivers consistent, high-quality data in even the most challenging environments.


Turner Designs has built a reputation for producing reliable, field-ready fluorometers trusted by researchers, government agencies, and environmental consultants worldwide. C-FLUOR continues that legacy, offering a dependable solution for both short-term studies and long-term deployments.

Why Choose C-FLUOR?

  • Reliable performance backed by Turner Designs’ decades of fluorescence expertise
  • Wide parameter selection for diverse research and monitoring needs
  • Compact and rugged for extreme environments and tight integration
  • Low power and fast response for efficient, real-time measurements
  • No calibration required, reducing setup time and maintenance


The C-FLUOR Submersible Probe is more than just a sensor—it’s a trusted tool for professionals who demand accuracy, durability, and simplicity. Whether you’re conducting long-term environmental studies or rapid-response fieldwork, C-FLUOR helps you capture the data that matters.

This spotlight was featured in the 2025-2026 Marine Instruments Buyers’ Guide, read more here.

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