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Ocean Seven 305Plus CTD

Product Name:Ocean Seven 305Plus CTD
Year of Initial Development:2001
Weight in air [kg]:2.6
Weight in water {kg}:
Diameter [mm]:7.5
Length [mm]:66
Housing material:
Max. cable length [m]:300
Min. operating power [V]:
Max. operating power [V]:
Battery type:Alkaline, Lithium or NiMH rechargeable
Battery duration [hr]:30
Max. depth [m]:2000
Max. pressure [bar]:200
Operating temperature: min. [°C]:
Operating temperature: max. [°C]:
Pressure, temperature and conductivity sensor 
Pressure sensor:
Type of pressure sensor:
Resolution of pressure [% FS]:0.0015
Uncertainty of pressure [% FS]:0.05
Temperature sensor:
Type of temperature sensor:
Min. temperature [°C]:-1
Max. temperature [°C]:50
Resolution of temperature [°C]:0.001
Uncertainty of temperature [°C]:0,005
Conductivity sensor:
Type of conductivity sensor:
Max. conductivity [S/m]:7
Resolution of conductivity [10^-3 S/m]:0.001
Uncertainty of conductivity [10^-3 S/m]:0.007
Min. depth increment [m]:0.05
Min. time increment [s]:0.075
Max. salinity [psu]:70
Resolution of salinity [psu]:0.001
Uncertainty of salinity [psu]:0.007
Min. sound velocity [m/s]:1400
Max. sound velocity [m/s]:1608
Resolution of sound velocity [m/s]:
Uncertainty of sound velocity [m/s]:
Additonal sensors 
Standard sensor:Conductivity; Temperature; Pressure
No. of additional sensors:4
Dissolved oxygen:
Dissolved oxygen sensor type:
pH :
pH sensor type:
ORP sensor type:
Fluorescense sensor type:
Cholophyll sensor type :
PAR sensor type :
Light transmission:
Light transmission sensor type :
Optical backscatter :
Optical backscatter sensor type:
Hydrocarbones :
Hydrocarbones sensor type:
Current sensor:
Current sensor type:
Turbidity :
Turbidity sensor type :
H2S :
H2S sensor type :
Redox :
Redox sensor type:
Other optional sensors:Oxygen, pH, Redox (ORP), Highly Accurate Precise (0.01%FS) pressure transducer OEM Turbidity Meter, the Unilux Fluorimeter and the Trilux Fluorimeter, PAR
Data and connectivity 
External recorder required:N
Direct data reading:
Internal memory:
Internal Memory [MB]:
Type of internal memory:
Max. number of samples for self-recording [10^3]:16000
Dedicated surface data logger:N
Dedicated sub-surface data logger:N
Telemetry link to remote location:N
Software specifications 
Software name:Iterm, uRedas, Redas-5
Graphical presentation:Y
Raw data editing:Y
Re-computation with raw data:Y
CTD Probe controller:Y
Recording with third party software:N
Operation characteristics 
Data display on dedicated hardware:N
Display of analogue data:Y
Method of first recording:Internal memory
More information 
Distinguishable features :8Hz SAMPLING RATE LOW POWER MULTIPARAMETER CTD - REAL TIME & DATA LOGGER provided with the RS232C standard interface or equipped with one of these interfaces: RS485, Telemetry or Wireless Bluetooth

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Supplier Information
  • Idronaut

  • Via Monte Amiata, 10
  • 20861 BRUGHERIO (MB)
  • Italy



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