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  Citadel CTD-EK Digital
  Citadel CTD-EK Analog
  Citadel CTD-ES
  Citadel CTD-NH
  Citadel CTD-NV
  Citadel TS-N
  Citadel CT-ETH
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Marine Measurements

Teledyne RDI Citadel CTD Products

After years as a Doppler manufacturer, we've stepped outside of our core technology via the introduction of our new Citadel CTD (Conductivity, Temperature, and Depth) product line.

This product line delivers exciting and proven technology that is complementary to Teledyne RDI's ADCP products, and represents a tremendous opportunity for us to quickly expand our product offerings and deliver turn-key solutions to our worldwide customer base.

CTDs are used extensively around the globe for the measurement of temperature and salinity, but also for the important derived parameters of density and speed of sound. They are used for academic, commercial and defense applications; and are often used in concert with ADCPs to gain a clearer understanding of the ocean's complex physical environment.

CTD product selection guide
Not sure which CTD is right for your unique application? Consult our CTD product selection guide
» Download PDF; or contact us at e-mail: rdisales@teledyne.com | Tel. +-858-842-2600.


Citadel CTD-NV:
Citadel CTD-NV: Scientific-quality conductivity, temperature, and depth measurement capability utilizing patented Non-external Inductive Cell (NXIC) technology » more
Citadel CTD-ES:
Citadel CTD-ES: Compact Conductivity, Temperature and Depth meter with direct digital output » more
Citadel CTD-EK Digital:
Citadel CTD-EK Digital: Conductivity and Temperature sensors with digital output for integration into user systems » more
Citadel CTD-EK Analog:
Citadel CTD-EK Analog: Conductivity and Temperature Sensors with Analog Output for Integration into User Systems » more
Citadel CTD-NH:
Citadel CTD-NH: Bio-fouling resistant, high-accuracy conductivity, temperature, and depth with external input, direct digital output, and datalogging capability » more
Citadel TS-N:
Citadel TS-N: Thermosalinograph for surface salinity with in-line sensors » more
Citadel CT-ETH:
Citadel CT-ETH: Compact Conductivity and Temperature Meter with Direct Digital Output » more
CTD Product Selection Guide:
Not sure which CTD is right for your unique application? Consult our CTD product selection guide
» Download PDF; or contact us at e-mail: rdisales@teledyne.com | Tel. +-858-842-2600.