CO2-Pro™ FT

Designed for continuous benchtop monitoring of CO2 on ships and in laboratories.

CO2-Pro™ FT

Designed for continuous benchtop monitoring of CO2 on ships and in laboratories.


  • Fast response and high accuracy
  • Long-term stable data for deployments of a year or longer
  • Resistant to biofouling
  • Real-time data output
  • Large selection of concentration ranges
  • Compact benchtop design
  • Internal data logger and controller with 2GB flash memory

pCO2 Sensor Applications

  • Ocean acidification studies
  • Long-term pCO2 monitoring
  • Shipboard flow-through pCO2 measurements
  • Laboratory experiments

CO2-Pro™ FT pCO2 Sensor

The CO2-Pro™ FT instrument measures the partial pressure of CO2 gas dissolved in water using infrared detection. Standard ranges from 0-600 ppm up to 0 - 2,000 ppm, along with custom ranges, provide the full spectrum of pCO2 needed for accurate measurement of water CO2 levels.

Labelled FT for Flow-Through version of our flagship CO2-Pro™ instrument, the Pro™-FT can be used wherever a supply of flowing sample water is available, including shipboard flow-through systems and laboratory testing.

The small size of the CO2-Pro™ FT makes it versatile and easy to integrate into larger systems where space is a concern. When combined with our anti-fouling features and options, the instrument can perform in even the most biologically active waters for extended periods of time. An internal zeroing feature provides a stable long-term baseline to ensure accurate measurements. 

The CO2-Pro™ FT is factory calibrated using WMO traceable standard gases. In addition, detector temperature stabilization and measurement of gas steam pressure and humidity provide an accurate and stable measurement of pCO2 in water.


Sensor Performance
Accuracy ±0.5%
Resolution 0.01 ppm
Zero drift automatic zero compensation
Equilibration time (t63) 50 seconds (with water pumped head at 20º C)
Standard range
(alternate ranges available)
0-600 ppm
0 - 1000 ppm
0 - 2000 ppm
Length 20 cm (8 in)
Width 20 cm (8 in)
Height 10 cm (4 in)
Weight (plastic) 2.7 kg (6 lbs)
Housing Plastic or Aluminum
Water Pressure Up to 3 bar
Water Temperature 0º to 30º C (Standard)
-2º to 20º C (Arctic)
15º to 40º C (Tropical)
Input voltage 10-18 VDC
Power consumption 3 W (9 W at warmup)
Optional Water Pump add 1 W
Data output RS-232, ASCII format, 0-5 V or 4-20mA optional
Sample rate 1 second (variable rate with logger/controller)


Pigtail Cables with Locking Sleeve
5, 10, 25, 50 meters, or longer

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