Broadband Portable Spectrometer - i-Spec 25

The i-Spec® 25, available from B&W Tek, is a broadband portable spectrometer with a handheld reflectance probe to perform measurements across the Vis/NIR range from 350 to 2500 nm.

This air-cooled system consists of Si, InGaAs and extended InGaAs array spectrometers for optimum sensitivity and dynamic range, for applications in areas such as materials science, mineralogy, optics measurements, plastics, food and agriculture.

The system comes with the iSpec® 4 software that provides data collection and system control capabilities via a simple interface, which optimally combines spectral data across the different ranges assessed with the multiple spectrometers. Data can be saved in different data formats for analysis flexibility.

The i-Spec® 25 instrument is lightweight and contains a carrying handle for easy transportation to wherever measurements are required to be made, providing users with lab performance in the field.


The main applications of the i-Spec® 25 broadband portable spectrometer are as follows:

  • Materials science
  • Food
  • Agriculture
  • Mineralogy
  • Optics measurements


The main specifications of the i-Spec® 25 broadband portable spectrometer are as follows:

Spectral range (nm) 400-1000 / 900-1700 / 1550-2500
Slit width (µm) 25 / 25 / 50
Approximate resolution (FWHM) 4.0 / 4.5 / 15.0
Detector Si PDA/InGaAs/Extended InGaAs
Fiber-optic probe Handheld reflectance probe with integrated 5W
tungsten halogen source (model TRP5; included)
Software iSpec® 4, SDKs available
Computer interface USB 2.0/1.1
Min. Integration time 250 us -2 ms (spectrometer dependent)
DC Power input 12VDC 10.8A with optional external battery support
Operating temperature 5 to 35 °C

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