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ASD - FieldSpec - 4 Standard-Res Spectroradiometer

The go-to standard for trusted portable field spectroscopy.

The FieldSpec 4 Standard-Res spectroradiometer, with 10 nm SWIR resolution is perfectly suited for characterizing spectral features with a resolution of 10 nm to 50 nm, which covers the technical requirements of most field researchers. The FieldSpec 4 Standard-Res spectroradiometer has long been the industry’s go-to workhorse instrument for trusted field spectroscopy and the scope of potential applications is broad.

The 3 nm VNIR, 10 nm SWIR spectral resolution of the FieldSpec® 4 Standard-Res portable spectroradiometer is ideal for characterizing spectral features with a resolution down to 10 nm. The FieldSpec 4 Standard-Res is well positioned to meet a majority of the technical needs of field researchers who require dependable and trusted results from a field portable spectroradiometer.


The FieldSpec 4 Standard-Res portable spectroradiometer is the right choice for a wide range of remote sensing applications, including multispectral sensor ground truthing and calibration, agricultural analysis, and snow and ice studies. In addition to being a world class spectroradiometer, the FieldSpec 4 Standard-Res is equally suited to serve as a rugged, portable spectrometer for accurate contact reflectance or non-solar stand-off measurements.

Technical Specification

Spectral Range 350-2500 nm
Spectral Resolution 3 nm @ 700 nm
10 nm @ 1400/2100 nm 10 nm @ 1400/2100 nm
Spectral sampling (bandwidth) 1.4 nm @ 350-1000 nm
1.1 nm @ 1001-2500 nm 1.1 nm @ 1001-2500 nm
Scanning Time 100 milliseconds
Stray light specification VNIR 0.02%, SWIR 1 & 2 0.01%
Wavelength reproducibility 0.1 nm
Wavelength accuracy 0.5 nm
Weight 5.44 kg (12 lbs)

Key Features

  • Higher resolution hyperspectral sensors
  • Full-range detection capacity (350 nm – 2500 nm) provides uniform Vis/NIR/SWIR
  • Faster integration speed allows more measurements in a limited solar collection time window.
  • Graded index InGaAs photodiode SWIR detectors ensure seamless measurements in the 1001 nm – 2500 nm spectral range
  • Provide the smallest available spectral sampling interval (bandwidth) in a field portable device.
  • Seamless measurements in the 1001 nm – 2500 nm spectral range
  • Superior signal throughput and greatly improved radiometric calibration accuracy over signal-to-noise
  • Long-range wireless increases collection coverage potential from a stationary base of operations.
  • Permanent fiber optic cable design provides superior signal throughput over detachable fiber optic cable systems
  • Agriculture
  • Education & Academics
  • Environmental
  • Food & Beverage
  • Mining & Minerals
  • Oil & Gas
  • Pharmaceutical
ASD, Inc.ASD Inc., a Malvern PANalytical company, is the global leader in high-performance analytical instrumentation solutions, solving some of the most challenging real-world materials measurement problems. ASD spectrometers — unparalleled in providing laboratory-grade results in the field or on-site — are the instruments of choice for remote sensing, environmental sciences, agricultural, mining, pharmaceutical and pulp and paper industry applications, where results drive paradigm-changing insights, efficiency and profit.
[LabSpec, Remote Sensing, FieldSpec, NIR System, PANalytical, ASD, Geology, TerraSpec, Mining, SummitCAL, Spectral Acquisition]