Quest Series Spectrometer

The NIR Quest is a versatile NIR spectrometer for applications ranging from moisture detection and chemical analysis to high-resolution laser and optical fiber characterization. NIR Quest spectrometers cover the wavelength range from 900-2500 nm.

Advantages of the NIR Quest Spectrometer

  • Reliable, robust spectrometer with deep thermoelectric cooling down to -20 °C for low dark current
  • Fast data transfer – great for applications with chemo metric models
  • Configurable with a range of detectors, gratings and slits for your specific application
  • Replaceable slit design and optional internal shutter.
  • The models are available in two different ways: custom configured and preconfigured.
  • Our preconfigured spectrometers are optimized around specific NIR applications. We offer preconfigured spectrometers for optimum response within a specific wavelength range.


Engineering SpecificationsNIRQuest512
Dimensions182 x 110 x 47 mm
Weight1.18 kg (without power supply)
DetectorHamamatsu G9204-512
InGaAs linear array
Wavelength range900-1700 nm w/Grating NIR3
Integration time1 ms – 120 s
Dynamic range15 x 106 (system);
15000:1 for a single acquisition
Signal-to-noise ratio>15000:1 @ 100 ms integration;
>13000:1 @ 1000 ms integration
Dark noise6 RMS counts @100 ms;
12 RMS counts @ 1000 ms
Grating – standardGrating NIR3, 150 l/mm, 900-1700 nm
Grating – customNIR10, NIR11, NIR12, NIR13 and NIR14
Standard slit25 µm
Custom slits10 µm, 50 µm, 100 µm and 200 µm
(or no slit)
Order-sortingOF1-RG830 longpass NIR filter (optional)
Optical resolution~3.1 nm FWHM w/25 µm slit
Fiber optic connectorSMA 905