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  • NIRQuest

NIRQUEST+1.7 Spectrometer

Part Number: NIRQUEST+1.7

Lead Time: 8 weeks

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Product Details

The NIRQuest+1.7 is a versatile NIR spectrometer for applications ranging from moisture detection to laser characterization. It is responsive from 900-1700 nm, while other NIRQuest+ models cover different ranges within 900-2500 nm. Custom and preconfigured NIRQuest+ options are available.

NIRQuest+1.7 can measure very small changes in absorbed signal, which are typical of harmonic overtones in the NIR. Its higher sensitivity enables better measurement accuracy, particularly in low light conditions. Also, at longer wavelengths, NIRQuest+1.7 measures diffuse reflection at low noise levels, resulting in cleaner spectra at wavelengths where distinct spectral features can be difficult to capture.

Example Applications

  • Determination of moisture content in grains
  • QA/QC inspection of pharmaceutical ingredients
  • Measurement of blood oxygenation in tissue
  • Component analysis of soil samples
  • NIR laser characterization
  • Hydrocarbons analysis in oil and gas
  • Photoluminescence of coated silicon wafers
  • Determination of chemical composition of plastics

For NIR solutions for customer integration projects, Ocean Insight offers several capabilities: in-house feasibility and verification testing via Ocean Lab Services; skilled engineering support for OEM level optimization of spectrometer optics and accessories; and machine learning algorithm development for advanced data identification and quantification.

NIRQuest+1.7 spectrometers are compatible with Ocean Insight's comprehensive line of fiber optic light sources, optical fibers and sampling accessories.

Product Overview

  • Robust -- reliable spectrometer with deep thermoelectric cooling to -20 °C for low dark current

  • Fast spectral processing -- rapid data transfer is great for applications using chemometric models

  • Modular -- configurable with a range of detectors, gratings and slits for your application

  • Flexible -- replaceable slit design and optional internal shutter for adaptable measurement control

Quick tip: A spectrometer wavelength calibration source can be a useful tool for your lab. For NIR applications, we recommend an Argon (AR-2, 696-1704 nm) or Xenon (XE-2, 916-1984 nm) emission source.

NIRQuest+ in the literature: How NIRQuest+ is helping researchers make more efficient use of the byproducts of paper making and pulp processes

Watch Our Newest NIR Spectrometer Video

With NIRQuest+, you'll enjoy a 2.5x increase in sensitivity, greater thermal stability, and low limits of detection from 900-2500 nm.

Using NIR Spectroscopy for Soil Characterization

Measuring soil composition with a near-infrared diffuse reflectance system helps characterize soil quickly, economically and effectively. In this demo, we use the NIRQuest+2.5 NIR spectrometer as part of a diffuse reflectance system for soil analysis.

Listen to our experts cover topics including the advantages of NIR spectroscopy, applications that benefit from NIR techniques, and where future NIR developments may take us.

Find the best Ocean Insight NIR spectrometer to meet your price and performance criteria. We have options at every level.

With compact size and great flexibility, modular spectrometers are attractive tools for photovoltaic materials research and production.

Need a custom configured spectrometer?

Flexibility in the selection of gratings, slits and other components
allows users to customize solutions for specific measurement challenges.

Contact us to find out how a spectrometer can be configured.


Select model to see full specifications


Wavelength Range:
900nm - 1.7μm
Optical Resolution:
3.13 nm FWHM (typical)
Integration Time:
1ms - 120s
Input Fiber Connector:
SMA 905
Signal to Noise Ratio:
13000:1 (typical)


InGaAs linear array
Entrance slit:
25 µm
Order Sorting:
OF1-RG830 longpass NIR filter


182 x 110 x 47 mm
1.18 kg (without power supply)