# CO2 probe measuring at temperatures up to 150 °C [closed]

I'm looking for a $$CO_2$$ measuring probe (analog current output, digital out: RS232/485 - probe will be connected and transferring real time data to the data logger) that would operate up to 150 °C (hot air sucked out from the heated column which is highly concentrated by $$CO_2$$).

Another $$CO_2$$ probe should measure (rather control) trace amount of $$CO_2$$ after it's separated from the exhaust gas (small scale experimental boiler burning coal) - operating temp. approx. 75 °C.

I have found tons of probes, but all of them measure up to + 60/65 °C.

Do you have any experiences with such probes?

• I am not an expert, but a quick google by including "high temp" gave me some solutions vaisala.com/en/products/… – EarlGrey May 17 at 19:30
• this question is a better fit over at electronics.stackexchange.com – trond hansen May 17 at 20:00
• or engineering. – mart May 18 at 14:32
• @trondhansen I see, I was having hard time finding a proper StackExchange community, thanks. – Josh E. May 18 at 20:11
• @EarlGrey I came by many similar types of probes. There's a difference between conditions the probe can withstand and the operating conditions. Probes for incubators are designed for sterilization cycles which are up to 200 °C because it won't make much sense to remove them every time. As for this one, it can measure $CO_2$ up to +70 °C. My case is to measure at higher temp. – Josh E. May 18 at 20:17