Ultramat 23 gas analyzer for measurement of 2 infrared Components and oxygen concentr. 19" plug-in unit for mounting in enclosures,gas connections 6 mm stub, without internal sample gas pump,without seperate gas paths(2 Channels) 1st component to be measured: NO 1st component to be measured Min. measuring range: 0 to 200 vpm Max. measuring range: 0 to 1000 vpm with paramagnetic Oxygen measuring cell Without H2S-Sensor Power supply: AC 230 V, 50 Hz 2nd component to be measured: SO2 2nd component to be measured Min. measuring range: 0 to 0,5% Max. measuring range: 0 to 2,5% Operator's software and documentation in English