ILT960UVLS-RAA4 Spectroradiometer


ILT960UVLS-RAA4 Spectroradiometer

Part Number: ILT960UVLS-RAA4


  • Reduced stray light  <.1%
  • 200 - 500 nm sensitivity range 
  • Zeroing filter to block VIS and NIR 
  • Extensive software package included 
  • Broad light level range is adjustable 
  • Linear and repeatable measurements 
  • <=.9nm resolution

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Spectrometer for Measuring Clean Room: 200 - 500 nm

The ILT960-UVLS is a Low Stray Light version of the ILT960-UV.   The UVLS Stray light is reduced from <.2% to <.1%.  The UVLS was originally designed for testing light filtration in clean room applications  assuring no UV is emitted in the storage areas where UV light sensitive products are kept or used during manufacturing. The ILT960UVLS-RAA includes ILT’s special zeroing filter to reduce stray light and noise, allowing a more accurate measurement of “no light”.  


The ILT96UVLS-RAA4 is also an excellent choice for testing pure light in the UV/Far UV such as UVC LED, LP and Amalgam mercury lamps as well as for testing UV sources used for disinfection and UV curing.  All systems come standard with SpectrILight III software, 1 meter long fiber, RAA4 right angle input optic, tripod, hard storage case, and NIST traceable, ISO1025 accredited calibration with certification and data files.


ILT960UVLS Graph



Watch a demo of the ILT960 Clean Room Spectrometer with 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


Model # ILT960UVLS-RAA4
Detector CMOS Linear Sensor
Focal Length 60 mm
Wavelength Range 181-500 nm
Slit 50 um
Resolution <=.9 nm
Optical Design Symmetrical Czerny-Tuner
SNR 330:01:00
Dynamic Range 3450
Integration Time 0.2 ms - 1 min
Stray Light <.1%
Wavelength Accuracy +/- .21 nm
Dynamic Dark Correction Yes
Non-Linearity Calibration Yes
Wavelength Calibration Yes
Trigger Compatible Yes
Synchronization Compatible Yes
ADC 16 Bits, 2.5 MHz
Data Transfer Speed  
Operating Temp 0-50 Deg C
Interface USB 2.0 UART
Calibration NIST Traceable/ISO17025 Accredited
Dimensions (mm) HxWxL 35.4 x 86 x 110
Power 300 mA@5VDC (supply voltage 4.75-5.25)
Input Optic RAA4 right angle adapter/diffuser (.27" dia) with mini integrating sphere .61 dia x .44" tall.