CO
(infrared) 0 ... 30.000 ppm
CO2
(infrared) 3 ... 30 %
O2
(electrochemical or ZrO2 or paramagnetic) 0 ... 25 %
NO
(infrared) 0 ... 5.000 ppm
NO2
catalytic conversion in NO with min. 90% effectiveness of the converter 500 ... 1.000 ppm
SO2
(infrared) 0 ... 5.000 ppm
HC
(infrared) 0 ... 1.000 ppm