Turner Designs

Cyclops 7

The CYCLOPS-7™ combination of price, performance and size makes the sensor very attractive for oceanographic, freshwater and dye tracing applications.

CYCLOPS-7™ was designed specifically for integration into any platform that supplies power and datalogging.

  • Extremely small size – 5.7″ x 0.9″ s/s or Ti. 5.7″ x 1.25″ (Delrin)


  • Affordable price / excellent value
  • Built-in light scatter rejection
  • Low power consumption
  • Integrates into a C6™ Multi-Sensor Platform™ or any third-party platform
  • Interfaces with DataBank™ Datalogger
  • Cyclops-7 Submersible Logger Available
  • Cyclops Explorer enables various lab applications
  • No Housing version available for integration
  • Custom optics available : 260-900 nm


CYCLOPS-7 can be easily added to typical multiparameter systems within existing space constraints. Measurement capabilities are not compromised by using the CYCLOPS-7 compact sensor. In CTD/AUV applications, you can choose between a smaller battery pack or longer operation on each battery charge. Measurements can be made at any frequency and interval, as determined by an external data logger. Price barrier has been significantly lowered for adding a fluorometer to existing monitoring platforms.



Cyclops-7 Performance
Linearity 0.99R2

Application Minimum Detection Limit Dynamic Range
CDOM/FDOM 0.15 ppb**
0.5 ppb***
0-1250 ppb**
0-5000 ppb***
Chlorophyll in vivo
  Blue Excitation
Red Excitation
0.025 μg/L
0.5 μg/L
0-500 μg/L
>500 μg/L
Fluorescein Dye 0.01 ppb 0-500 ppb
Oil – Crude 0.2 ppb*** 0-2700 ppb***
Oil – Fine 10 ppb*
10 ppm****
>10,000 ppb*
>100 ppm****
Optical Brighteners 0.6 ppb*** 0-15,000 ppb***
(Freshwater Cyanobacteria)
2 ppbPC 0-40,000 ppbPC
(Marine Cyanobacteria)
0.15 ppbPE 0-750 ppbPE
PTSA Dye 0.1 ppb*** 0-650 ppb***
Rhodamine Dye 0.01 ppb 0-1000 ppb
Tryptophan 3 ppb >20,000 ppb
Turbidity 0.05 NTU 0-3000 NTU

* 1,5 Napthalene Disulfonic Disodium Salt
** Quinine Sulfate
*** PTSA (1,3, 6, 8 – Pyrenetetrasulfonic Acid Tetrasodium Salt)
**** BTEX (Benzene, Toluene, Ethylbenzene, Xylenes)
PC Phycocyanin pigment from Prozyme diluted in Deionized water
PE Phycoerythrin pigment from Prozyme diluted in Deionized water

Cyclops-7 Physical Dimensions
Length x Diameter 5.7″ x 0.9″; 14.48 x 2.23 cm (SSt or Ti)
5.7″ x 1.25″, 14.48 x 3.18 cm (Delrin)
Weight 5.0 oz; 142 grams

Cyclops-7 Environmental Characteristics
Temperature Range Ambient: 0 to 50 deg C
Water Temp: -2 to 50 deg C
Depth Range 600 meters
Signal Output 0 – 5 VDC
Supply Voltage Range 3 – 15 VDC
Power Requirements < 300mW typical







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