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  • NIRQuest

Custom Configured NIRQuest+ Spectrometers

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The NIRQuest is a versatile NIR spectrometer for applications ranging from moisture detection to laser characterization. NIRQuest spectrometers cover the wavelength range from 900-2500 nm. Custom and preconfigured options are available.

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
• Hydrocarbon analysis in oil and gas
• Photoluminescence of coated silicon wafers
• Determination of chemical composition of plastics


  • 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


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.

Take advantage of our technical guidance and this interactive spectrometer range-resolution tool.

Engineering Specifications NIRQuest
Optical resolution: 512-1.7: ~3.1 nm w/25 µm slit
512-1.9: ~3.1 nm w/25 µm slit
512-2.2: ~5 nm w/25 µm slit
512-2.5: ~6.3 nm w/25 µm slit
256-2.1: ~7.6 nm w/25 µm slit
Signal-to-noise ratio: 10000:1 (full signal)
A/D resolution: 16 bit
Dark noise: 6 – 24 RMS counts dependent on the model and integration time
Dynamic range: 7500 – 15000:1 for a single acquisition dependent on the model
Integration time: 1 ms – 120 seconds
Corrected linearity: 512, 512-1.9, 512-2.2, 256-2.1: >99.8%;
512-2.5: >99.6%
Power consumption: 250 mA @ 5 VDC
Inputs/Outputs: Yes. Onboard digital user programmable GPIOs
Trigger modes: 4 modes
Strobe functions: Yes
Gated delay feature: Yes
Connector: 30-pin connector
Type: InGaAs photodiode array
Range: ~800-2500 nm
Pixels: 512 models: 512
256 models: 256
Pixel size: 512, 512-1.9 models: 25 µm x 500 µm
512-2.2., 512-2.5 models: 25 µm x 250 µm
256 model: 50 µm x 500 µm
Dimensions: 182 x 110 x 47 mm
Weight: 1.18 kg (2.6 lb.)

Measurement techniques