Turner Designs C3 Submersible Fluorometer

The Turner Designs C3 Submersible Fluorometer is designed to incorporate up to three optical sensors ranging from the ultraviolet to the infrared spectrum.


  • Internal memory with lithium battery option for unattended deployments
  • Factory-installed temperature sensor with optional depth sensor and mechanical wiper
  • Depth rated to 600 meters
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Turner Designs C3 Submersible Fluorometer

The Turner Designs C3 Submersible Fluorometer is designed to incorporate up to three optical sensors ranging from the ultraviolet to the infrared spectrum. Internal memory storage capacity combined with an external submersible lithium ion battery allows the C3 to run during extended or short-term deployments. Each Turner Designs C3 comes with a factory-installed temperature sensor and a depth rating of 600 meters. An optional factory-installed depth sensor and mechanical wiper is also available. The C-Soft Windows based software allows for intuitive calibration, data logging set up, file management capabilities as well as digital or analog data integration.


  • Order up to Three Optical Sensors
  • Digital or Analog Integration with a CTD Profiler or 3rd Party Platform
  • Easy to Use C-Soft Software with Data Management Capabilities
  • Extended Deployments with Submersible Battery
  • Temperature Sensor Included
  • Optional Depth Sensor Available
  • Optional Mechanical Wiper Available
  • Weight in Air: 1.64 kg (3.6 lbs.)
  • Length: 23cm (9.1 in.)
  • Diameter: 10cm (3.9 in)
  • Material: Delrin Plastic
  • Temperature: -2 to 50 degrees C
  • Depth: 0 to 600 meters
  • External Power: 8 to 30 VDC
  • Output: Digital Signal
  • Interface: RS232 Interface
  • Maximum Sample Rate: 1 Second
  • Maximum Power Requirements: 1 Watt
  • (1) C3 submersible fluorometer
  • (1) PC interface cable
  • (1) 12V power supply
  • (1) Factory-installed temperature sensor
  • (1) Communication and integration cable
  • (1) "Y" style USB to male and female DB-9
  • (1) 8-pin female dummy plug
  • (1) CD with software, user's manual, and quick start guide
Questions & Answers
Can I change out my optical sensors?
No, the C3 Fluorometer offers 1, 2, or 3 factory-installed sensors of your choice, but they cannot be switched or added once installed.
Does the C3 Fluorometer include a battery?
No, the C3 Fluorometer does not include a battery. However, an external lithium battery pack is available for unattended use of the device.
How many uses will one battery charge allow?
The optional lithium battery pack is rated for 10,000 data lines per charge. The battery requires 8 hours to fully charge.
Are any of the Cyclops-7 sensors compatible with the C3?
No, all optical sensor options must be ordered with the C3 for factory integration
Does the pressure sensor use up one of the optical ports?
No, the pressure sensor and mechanical wiper are installed separately during the unit's manufacturing, and they do not interfere with the number of optical ports chosen.
What is the detection limit for the Rhodamine sensor?
The optional Rhodamine optical sensor has a minimum detection limit of 0.01 ppb and a dynamic range of 0-1000 ppb.
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