At the first sight, LI-COR sensors are more precise but EGM-5 is more suitable for field work because EGM-5 is waterproof, can store data, has internal pump and accumulator and can work in autonomous mode (while LI-COR is just a sensor without pump, data storage and etc.). Perhaps, EGM brakes down more often and has shorter life time than LI-COR.
The task is to measure soil CO2 fluxes using chambers in different ecosystems.
We at FIU haven been loving the Los Gatos Ultra-Portable Greenhouse Gas Analyzer.
Sonja, I agree that LosGatos is perfect solution, but it is too expensive. It is about 30,000 $ in USA. It means that in Russia we can officially buy it for 45,000-50,000 $ (because of local distributors). For us it is too much.
Hi
I have used Li-COR IRGA for 10 years throughout my PhD, Postdoc and in my professional career. I have found the 820 very reliable. The 820 I use is integrated with a West Systems Diffuse Soil Meter and is stored in a Pelican Case etc.
Dear Clinton
is Li-COR IRGA for CO2 flux from soil only or can work also with all ecosystems?
for example to measure flux from surface water?
regards
Thanks, Clinton. I have heard several times that LI-COR is very reliable sensor.
Hi Alexander, yes I have used the licor to measure CO2 across lakes, thermal springs, estuaries. Just need to ensure you use a water trap. I use anhydrous CaSO4 as a dessicant. Regards, Clint
LICOR IRGA is one of the best round, I have used more than 20 years - work well in all conditions
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