ILT960-NIR Spectroradiometer

ILT960-NIR Spectroradiomater

ILT960-NIR Spectroradiometer

Part Number: ILT960-NIR US

ILT960-NIR Portable IR Spectrometer for Measuring Infrared Light Sources - 900-1700 nm

The ILT960-NIR is a portable mini spectrometer optimized for VIS-NIR light applications with NIST traceable ISO/IEC 17025:2017 Accredited Calibration.  All systems come standard with SpectrILight III software, 1 meter long fiber, input optic, tripod,  and protective storage case.

The ILT960-NIR can be combined with other ILT960 models to expand the range to include UV and VIS spectral measurements.


  • Compact, portable design 
  • 900-1700 nm sensitivity range 
  • Can be combined with ILT960-BB to extend range from UV -NIR
  • ISO/IEC 17025:2017 Accredited and NIST traceable calibration 
  • Extensive software package included 
  • Calculates Radiometric values
  • Broad light level range is adjustable 
  • Linear and repeatable measurements 

From Now Until December 31, 2023 Take An Extra 15% Off ILT Spectrometers Using Promo Code SPECS15%

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ILT960 with accessories

The ILT960-NIR is a compact, broad-band, portable, mini portable spectrometer used to measure both the light's amplitude and wavelength, and provide calibrated spectral irradiance, radiance or power measurements. The ILT960 kits are combined with high end optics for proper light collection including diffusers for cosine correction, integrating spheres for total flux and radiance barrels for a narrow FOV.  All ILT960 spectrometers include both wavelength and optical NIST traceable - ISO17025 accredited calibrations with certification and data files. Complimentary SpectrILight III software is included at no cost, and complimentary DLLs are available upon request.


The ILT960-NIR includes our RAA4 mini right angle diffuser, 1 meter long fiber optic light guide, rugged case, tripod, calibration and software.


Options for total flux:

  • ILT960NIR can be combined with our INS125 for total flux measurements (5” sphere with 3 ports (20 & 40 mm dia), 1m, fiber and flux/power cal required) 



Watch a demo of the ILT960 with SpectrILight III software

Optional Portable Spectroradiometer Accessories

Click on image to go to Spectroradiometer Accesories page


  • Three integrating spheres:  2", 5", 10"
  • Two luminance optics:  spot luminance and +/- 2 Deg FOV
  • Three versions of cosine receptors; mini, standard, right angle
  • Four fiber optic cables; bundled 2 m L, 600 um 1 m long, 200 um .5 m Long, Bifurcated
  • Validation lamp and power supply for integrating spheres, reference measurements
  • Reflectance reference - white
  • Spot finding light source for luminance optics
  • Optical Bench post
  • SpectrILight III Software


 SpectrILight III Software

SpectrILight™ III is a LabView™ based software package for Windows that allows you to acquire spectral and color data. Analysis of the data is now calculated instantly within the same program - no exporting required!
SpectrILight™ III includes calculations for metamerism, and 2 and 10 degree observer. The overlay feature allows the user to compare the base reading to current readings. Wavelength range, integration time, scan average and other controls can be easily set through pop up windows, menus and tool bars. Absolute irradiance and chromaticity are calculated instantly.


ILT960UV scan
ILT960 graph


ILT960 graph 3


ILT960 graph 4


Optical Design Symmetrical Czerny-Turner
Focal Length 60 mm
Wavelength Range 900 - 1700 nm
Grating 236.8 lines/mm @ 1350 nm
Slit 50 µm
Resolution <= 7nm**
Stray Light <.2%
Signal/Noise HS 2800:1
Integration Time 0.1 ms - 15 sec
Signal/Noise LN 5400:1
Detector InGaAs linear array, 256 pixels, 50 µm (H) x 500 µm (V), Pixel Pitch 50 µm
AD Converter 16 bits, 15 MHz
Operating Temp 0-50 Deg C
Interface USB 2.0 high speed
Sample speed with on-board averaging 1.5 ms/scan
Data Transfer Speed 2 ms/scan (USB)
Calibration NIST Traceable/ ISO17025 Accredited
Dimensions (mm) HxWxL 32 x 86 x 110
Weight 420 g
Power Supply USB power


** Average = 4.5 nm based on optical simulation