The ODO/CT has all the advantages of optical dissolved oxygen technology – higher accuracy, less maintenance, no stirring required for accurate measurements, holds calibration longer than membrane covered sensors and is not susceptible to interferences from other gases.

Instrument setup is quick and easy with the integral sensors, which eliminates the need to install sensors before use. The digital technology of the ProDSS allows the handheld to automatically recognize connected sensors, so there is no need to tell the instrument what is connected. 

The ProDIGITAL ODO/CT probe and cable assembly features include:

• Integral (i.e. built-in) optical DO, conductivity, and temperature sensors that are auto-recognized by the ProDSS handheld, reducing instrument set-up time
• Automatically compensates DO mg/L measurements for salinity; no need to enter salinity compensation values
• Rugged Optical DO sensor cap with a 2-year warranty is pre-installed on new assemblies
• Fits in a 1 inch well
• Cable lengths up to 100 meters

The ODO/CT assembly is compatible with the ProSolo and ProDSS handhelds (sold separately).
Pre-assembled ProSolo ODO/CT kits are available.

Temperature – ±0.2 °C

Dissolved Oxygen – 0 to 200%: ±1% of reading or 1% saturation, whichever is greater 200 to 500%: ±8% of reading 0 to 20 mg/L: ±0.1 mg/L or 1% of reading, whichever is greater 20 to 50 mg/L: ±8% of reading

Conductivity – 0 – 100 mS/cm: ±0.5% of reading or .001 mS/cm, whichever is greater 100 – 200 mS/cm: ±1.0% of reading

Specific Conductance – 0 – 100 mS/cm: ±0.5% of reading or .001 mS/cm, whichever is greater 100 – 200 mS/cm: ±1.0% of reading User selectable reference temperature (15 to 25 °C; default 25 °C) and compensation coefficient (0 to 4%/°C; default 1.91%)

Salinity – ±1.0% of reading or ±0.1 ppt, whichever is greater

Total Dissolved Solids (TDS) – Calculated from specific conductance and a user-selectable TDS multiplier (0.30 to 1.00; default 0.65)

Seawater Density – Sigma is calculated from salinity, temperature, and pressure (depth) Sigma T is calculated from salinity and temperature

Resistivity – ±0.1% Full Scale

Temperature – -5 to 70 °C (temperature compensation range for DO mg/L measurement: -5 to 50 °C )

Dissolved Oxygen – 0 to 500%, 0 to 50 mg/L

Conductivity – 0 to 200 mS/cm

Specific Conductance – 0 to 200 mS/cm

Salinity – 0 to 70 ppt

Total Dissolved Solids (TDS) – 0 to 100 g/L

Seawater Density – 0.0 to 50.0 sigma, sigma T

Resistivity – 0 to 2 Mohms

Temperature – 0.1 °C or 0.1 °F (user selectable)

Dissolved Oxygen – 0.01 mg/L and 0.1%, or 0.1 mg/L and 1% (user selectable)

Conductivity – 0.001, 0.01 or 0.1 mS/cm

Specific Conductance – 0.001, 0.01, 0.1 mS/cm

Salinity – 0.01 ppt

Total Dissolved Solids (TDS) – 0.001, 0.01, 0.1 g/L

Seawater Density – 0.1 sigma or sigma T

Resistivity – 0.001, 0.01, 0.1