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  • STS NIR Spectrometers

STS-NIR Spectrometers

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The STS-NIR spectrometer (650-1100 nm) is a versatile choice for applications ranging from low-concentration absorbance measurements to high intensity laser characterization. Its rugged design, compact size and great unit-to-unit reproducibility make STS attractive for integration into other devices and setups where a small footprint is desired.



  • Compact – actual size is 40 x 42 x 24 mm
  • Powerful – high signal-to-noise (>1500:1) and dynamic range (4600:1) performance
  • Thermally stable – peak shape stays the same over a wide temperature range
  • Cost-effective – optical resolution of 1.5 nm (FWHM) is comparable to more expensive setups
  • Reproducible – attractive design for integration and scalability
  • Multiple slit options -- STS-NIR models are available with 10 µm, 25 µm, 50 µm, 100 µm or 200 µm slits

Take advantage of our technical guidance and this interactive spectrometer range-resolution tool.


Subject to change depending on model type


Wavelength Range:
650nm - 1.1μm
Optical Resolution:
1.0 nm, 1.5 nm, 12.0 nm, 3.0 nm, 6.0 nm
Integration Time:
10μs - 10s
Dark Noise:
≤3 counts RMS
Dynamic Range:
5 x 109 (system, 10 s max integration), ~4600 single acquisition
Input Fiber Connector:
SMA 905
Signal to Noise Ratio:
>1500:1 (full signal)
Stray light:


Entrance slit:
10 µm, 100 µm, 200 µm, 25 µm, 50 µm
Detector Collection Lens:


40 mm x 42 mm x 24 mm
~ 60 g, ~ 60 g

Measurement techniques

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