When considering a transmitter for your application, you should assess if you need to measure only one parameter with the transmitter, or will need to measure multiple parameters. If you need to measure multiple parameters, consider a multi-parameter transmitter. With a multi-parameter transmitter you can use the same model transmitter for different parameters.
If you need the transmitter to measure more than one measurement point simultaneously, you will need a multi-channel transmitter. In this case you can use the DO transmitter as a CO2 transmitter as well.
You should also consider if you need this analytical transmitter to be integrated into a control system.
If you want to use the predictive diagnostics of an ISM sensor, you will need an analytical transmitter that accepts ISM sensors. You should also consider the production environment.
METTLER TOLEDO offers DO transmitters, CO2 transmitters and ozone transmitters with different enclosures, and that work in hazardous areas.
METTLER TOLEDO recommends a discussion with a local sales representative to assess your needs and recommend the right analytical transmitter for your specific application.