ILT2500 Hand-Held Total Flux and Radiance Light Measurement System


ILT2500, SED033/F/A313-7MM

Part Number: ILT2500, SED033/F/A313-7MM US

Total Flux and Radiance Light Measurement

  • Research Quality at a Hand-held Price
  • 8 Decade Dynamic Range of Optical Analysis
  • Made in USA
  • Meter & Sensors with NIST Traceable ISO17025 Accredited Calibration
  • Hand-held, Compact, Ergonomic Design
  • Brilliant 4.3” Touch Screen Display
  • 90° Screen Rotation for Landscape and Portrait Viewing
  • ILT’s Accuspan: Auto-ranging with Smart Averaging
  • Built-in Rechargeable Battery Lasts Up to 8 Hours
  • Backwards Compatible with ILT1700 Sensors
  • Measurement Speeds Up to 100 μSeconds
  • Custom & OEM Inquiries Welcome


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ILT2500 response curve

Sensor Configurations

Peak Irradiance in W/cm2

  • Dynamic Range: 4e-9 to 5e-2 W/cm²
  • Measurement Range: 400 -1000 nm
  • Dimensions: 30 x 42 mm dia.
  • Ordering part#(s): SED033/F/A313-7MM











Total Flux in W

SED100/F/K15, Larger diode area selected for ease of aiming and assure total flux is measured.
Dynamic Range: 7.69e-13 to 1.5e-2 Watts
(Note: add QNDS1, QNDS2 or QNDS3 to attenuate by a factor 10,100 or 1000 as needed)

SED033/F/HNK15 Includes a narrow beam adapter to prevent aiming errors.
Dynamic Range: 2e-7 to 3 Watts

SED033/F/INS125 or SED033/F/INS250. The INS125 5” integrating sphere and INS250 10” integrating sphere allow total flux measurements from sources that are larger than the active area of the SED100 and HNK15. This include small lamps, lasers, laser diodes and other light sources. Our Integrating spheres have two ports for connecting the light source (one 20 mm dia port and one 40 mm dia. Port)
Average power measurement ranges cover from 3e-6 W up to 3 Watts.
(Note: add QNDS1, QNDS2 or QNDS3 to attenuate by a factor 10,100 or 1000 as needed) 


Radiance in W/cm2/sr

SED033/F/R Narrow field of view, radiance probe. Field of view: 1.5 deg. Designed for average measurement of radiance over a target area greater than 30 mm diameter plus 0.75 degree half angle.

Dynamic Range: 6e-8 to 1e+0 W/cm²/sr
Measurement Range: 400-1064 nm
Dimensions: 87 x 42 mm dia.
Ordering part#(s): SED033/F/R








For the latest data sheet, user's guide, technical notes, software downloads and other information, visit the ILT2500 product page.