CO2 analyzer (sensor)

Dear friends
My research topic is about designing a chemical reactor for CO2 capture. I have designed an experimental reactor and I need to measure the concentration of CO2 in the outlet of the reactor. Accordingly, I need a CO2 analyzer (CO2 sensor) that would be able to measure the concentration of CO2 and record it in the computer. I have searched google, but I have not found too many products that can be used in my research. Could you inform me if you know any CO2 analyzer or sensor that meets the following criteria:

1) I need to record the variations in CO2 concentration in short periods of time, for example every 20 sec. The analyzer should have a data acquisition system or can be connected to data logger to record the data in the computer.

2) I need to change the flow rates every time I begin the experiment. The range of flow rate will be between 1 to 5 Lit/min. The flow gas usually contains 25% of CO2.

While I appreciate your kind attention, I look forward to hearing from you soon.

Best regards


lopeznora5 years ago

Viasensor is a leading provider of environmental analyzers, equipment and products used in clinical environments, hospitals, laboratories.

This unit has been developed to incorporate the latest technology and specications requirements that provide the user with a fast, simple-to-use analyzer.

Quick verification of co2 levels.
Improved accuracy on co2 readings.
Built in gas moisture removal.
Visit -
alexdy6 years ago
Look for Tongdy CO2 sensor on Google , there's one CO2 monitor with data logger that can meet your needs.
There's lime water:

And then there's NDIR

The lime water is probably cheaper. Read both those Wiki articles, and the sources they link to, and then you'll know as much as I do about detecting gaseous CO2.
Look for TGS sensors. I don't think you've looked terribly hard, because Google is full of suggestions, especially at these high concentrations.