Dears, Do you have any experience and comparison data between the following gas analyzers: 1 - CIRAS-2 (PP Systems, USA) 2 - LI-6400 (LICOR, USA 3 - GFS-3000 (Walz, Germany) 4 - LCPro (ADC, UK) 5 - Cl-349 (CID, USA) Best Regards, Hazem Kalaji, PhD Plant Physiologist hazem from kalaji.pl