Perfectly equipped for flue gas analysis on heating oil and gas the exhaust gas analysis set is available the flue gas testo 320 basic with practical accessories so you have the ideal equipment to perform exhaust gas analysis kaminzug and pressure measurements efficientlyapplications for the flue gas analyzer testo 320 basic set gas analysis focus on gas combustion air temperature exhaust gas temperature o 2 co co 2 concentration flue gas loss gas air ratio efficiency gasfl