The wavelength of the GasFindIR HSX is 3-5 microns and the GasFindIR LW is 8-12 microns. The T400 is 8-12 microns, but the difference between the T400 and GasFindIR is the T400 has an uncooled bolometer and the GasFindIR LW is a cooled InSb detector.
Paul wrote: elength of the GasFindIR HSX is 3-5 microns and the GasFindIR LW is 8-12 microns. The T400 is 8-12 microns, but the difference between the T400 and GasFindIR is the T400 has an uncooled bolometer and the GasFindIR LW is a cooled InSb detector.