The FTNIR-FC-025-2TE from ARCoptix is a Fourier-transform Infrared (FTIR) Spectrometer that has a spectral range from 4000 to 11000 cm-1. It has a spectral resolution of 4 or 8 cm-1 and requires a reference laser wavelength of 795 nm. This spectrometer has a wavelength repeatability of up to 10 PPM and a scan frequency of 1 spectrum/second. It has a 24-bit ADC and uses a fiber that has a core diameter of up to Ø 1 mm with a numerical aperture of 0.3. This spectrometer can be controlled via ARCoptix's DLL using an API and supports USB 2.0 interface. It has an integrated 20 W QTH lamp light source and requires 40 W of power. This spectrometer is available in a benchtop package that measures 180 x 160 x 80 mm with an SMA 905 connector and is ideal for chemical process monitoring with fiber probes and remote gas sensing via IR optical fibers.