Chelsea Technologies Group is the world's leading designer and manufacturer of in-situ fluorimeters.

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TriLux: The new family of low cost miniature multi-wavelength digital fluorimeters giving digital output in engineering units.  

FAST^tracka II: Second generation Fast Repetition Rate Fluorimeter designed to measure variable fluorescence in both marine & fresh water. 

MINI^tracka II: Small low cost  fluorimeter available in chlorophyll, rhodamine, fluoroscein, phycocyanin, phycoerythrin and nephelometer versions.

UV MINI^tracka : Small low cost fluorimeter to monitor the concentration of hydrocarbons (360nm) or Gelbstoff (440nm).   

AQUA^tracka III: Compact, lightweight, submersible  fluorimeter for the determination of Chlorophyll-a,dye tracing or turbidity. Rated to 6000m. 

UV AQUA^tracka :   Submersible  fluorimeter for the monitoring of  hydrocarbons (360nm) or Gelbstoff (440nm). Rated to 6000m.