CO2-pro atmosphere

Dissolved CO2 SensorThe Pro-Oceanus CO2-Pro Atmosphere is an advanced measurement instrument enabling scientific researchers to simultaneously measure dissolved and atmospheric carbon dioxide.

The CO2-Pro Atmosphere is ideal for scientific studies on greenhouse gases, climate change, ocean acidification, biogeochemical and oceanographic processes.


related products


CO2 Atmospheric SensorThe CO2-Pro Atmosphere consists of 1) a NEMA box for air intake that contains separators and filters to block bulk water and aerosols; and 2) a modified version of our CO2-Pro instrument alternating between measuring pCO2 in the water and air. The air intake box is mounted in clean air, e.g., the top of a buoy or on a ship’s forward mast (for underway measurements).

The modified CO2-Pro sensor is mounted beneath a buoy, or when used in underway mode, occupies a very small space on shipboard and requires only a source of power and surface seawater. The air intake box supplies the CO2-Pro sensor with sample air through low permeability, UV-resistant tubing.

The CO2-Pro Atmosphere has the same capabilities and measurement accuracy and precision as the CO2-Pro sensor and allows users to determine CO2 fluxes in and out of the oceans.


  • CO2 SensorMeasures both water and atmosphere gas
  • High precision and accuracy
  • Low power and lightweight
  • Unique antifouling protection
  • Onboard logging available


feature specification
Measurement Ranges 0-600 µatm | 0-1000 µatm | 0-2000 µatm | other custom ranges are available
Accuracy 0.5%
Response Time (T63) ~ 2.5 min (in water) | 10 sec (in air)
Operating Temperature Arctic version: -2 to 15ºC | Standard: 0 to 30ºC | Tropical version: 15 to 40ºC
physical dimensions
Length 33 cm (add 10 cm for connectors)
Diameter 19 cm
Weight 5.5 kg in air, 0.4 kg in water
Housing Acetol
electrical characteristics
Input Voltage 12-18 V DC
Power Consumption 0.4 A (includes water pump) | 1.2 A during warmup
Data Output RS-232 serial output | ASCII format (other outputs available)
Data Storage 2 GB (with data logging option)
Sample Rate 1.6 seconds | user selectable