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Enabling better global research outcomes in soil, plant & environmental monitoring.

Apogee PS-100: Visible to Near Infrared Range Lab Spectroradiometer

The PS-100 measures a wavelength range of 350 to 1000 nm. The spectroradiometer comes in a complete package ready to connect to your computer and begin making measurements. Typical applications include measurement of spectral output (energy flux density, photon flux density, or illuminance) of different radiation sources (often for plant or human lighting), and reflectance and transmittance measurements of natural and synthetic surfaces and materials (often plant leaves and canopies).


  1. Spectroradiometer unit
  2. Fiber optic cable (2 m)
  3. Apogee cosine corrected radiometric head with black cap
  4. Apogee bubble level plate
  5. Apogee calibration (certificate upon request)
  6. Apogee 2GB USB drive with data collection software and calibration files
  7. Blue USB 2.0 cable
  8. Apogee carrying case
  9. Reflectance wand
  10. 1 year warranty
Wavelength Sensitivity 350 to 1150 nm
Irradiance Calibration Range 350 to 1000 nm
Wavelength Resolution 1 nm
Detector Type CCD, 2048 pixel
Grating Type Holographic & Ruled, 600 g/nm
Digitizer 16-bit
Signal to Noise Ratio 1000:01:00
Stray Light 0.1 % at 435 nm, 0.5 % at 600 nm
Measurement Repeatability Less than 1 %
Irradiance Calibration Uncertainty ± 10 %
Detector Integration (Exposure) Range 1 ms to 65 s
Directional (Cosine) Response ± 5 % at 80° zenith angle
Software Windows compatible, included
Computer Interface USB 2.0
Power Requirement 100 mA at 5 V DC, supplied via USB code
Operating Temperature 0 to 60 C
Optical Cable 2 m armored fiber-optic
Base Unit Size 25 mm X 75 mm X 125 mm
Mass 500 g