Simultaneous measurement of multiple gas spectra (CO2, H2O, CO, NH3, NO, NO2, N2O, SO2, CH4, HF, HCl, VOC, etc.) Multi-bandpass heating cell (20 to 200°C) with bandwidth range up to 2 to 16 μm (5000 to 650 cm-1) Detection limit ppm level GASEX OEM Standard / GASEX OEM SC for high concentration % level