Ultramat 23 gas analyzer for measurement of 2 infrared Components and oxygen concentr. 19" plug-in unit for mounting in enclosures, gas connections 1/4 inch stub, without internal sample gas pump, without seperate gas paths (2 Channels). (with E21: w/o Flow- indicator, Pressure switch und condensation trap) 1st component to be measured: NO 1st component to be measured Min. measuring range: 0 to 100 vpm Max. measuring range: 0 to 500 vpm without O2-Sensor Without H2S-Sensor Power supply: AC 120 V, 60 Hz 2nd component to be measured: SO2 2nd component to be measured Min. measuring range: 0 to 150 vpm Max. measuring range: 0 to 750 vpm Operator's software and documentation in English