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RS-3500 Remote Sensing Spectroradiometer


An Affordable Field Solution for Vegetation Researchers

 Our RS-3500 Remote Sensing Bundle includes a fiber optic field portable remote sensing Spectroradiometer plus all the accessories to match your application and budget.

The RS-3500 Remote Sensing Bundle provides:Fast, full-spectrum UV-VIS-NIR measurements – 350-2500 nm with just one scan using the SR-3500 spectroradiometer

Superior reliability in the field with 100%diode array optics with no moving parts
Auto shutter, auto exposure, autodark correction before each new scan with no optimization step
Lightweight and compact at 7.3 lbs
Lightweight, re-chargeable, external Li-ion battery for field use
Removable fiber optic cable – field swappable and easy to replace
Optional SMA-905 FOV lenses available for increased flexibility
Factory calibrated radiance and/or irradiance using NIST traceable source
Bluetooth connectivity (Class I)
Use with a laptop or included rugged handheld Getac microcomputer with auto-focus digital camera, e-compass, GPS tagging, altimeter, voice note capabilities, and sunlight readable display
DARWin SP Data Acquisition software for one-touch scanning, automatically saves data as ASCII files for use with 3rd party software without pre-processing
Pull-down menus from DARWin for access to USGS library and vegetation indices

Specification of RS-3500 Spectroradiometer


BundleRS-3500 Spectroradiometer

Spectral Range



Spectral Resolution

3nm @ 700nm

8nm @ 1500nm

6nm @ 2100nm


Spectral Sampling Bandwidth


    Data output

in 1nm increments

2151 channels reported

Si Detectors

512 element Si photodiode array (350–1000nm)

InGaAs Detectors (thermoelectrically cooled)

256 element extended wavelength photodiode array (1000–    1900nm)

256 element extended

wavelength photodiode array (1900-2500nm)


FOV Options

SMA-905 fiber end mount lenses:  1, 2, 3, 4, 5, 8 and 10° field of view,

irradiance diffuser

Noise Equivalence Radiance

0.8x10-9 W/cm2/nm/sr@700nm

(1.2 meter fiber optic)

1.2x10-9 W/cm2/nm/sr@1400nm


1.8x10-9 W/cm2/nm/sr@2100nm

Minimum Scan Speed

100 milliseconds

Wavelength Reproducibility


Wavelength Accuracy

±0.5 bandwidth

Communications interface

USB or Class I Bluetooth– laptop or PDA compatible


8.5 x 12 x 3.5 inches (21.59 x 30.48 x 8.89 cm)



External Li-ion battery and universal power charger (2 of each included)


7.3 lbs (3.31 kg)

Applications Of RS-3500 Spectroradiometer

Ground truthing – confirming, disputing, or interpreting hyperspectral or multi-spectral data
Environmental research
Agricultural analysis
Ecosystem change
Forestry research, including canopy studies
Glacial change and climate studies
Atmospheric research
Vicarious satellite sensor validation
Water body studies
Plant species identification
Urban development
Crop health, including photosynthesis efficiency
Irrigation assessment
Topsoil fertility and erosion risks
Soil degradation, mapping, and monitoring