Discover the VARIUS™ NIR Enhanced Spectrometers – designed to deliver advanced performance in near-infrared spectroscopy while offering flexibility for various applications. These enhanced models are built on the trusted VARIUS™ platform and feature an upgraded detector for improved sensitivity, signal quality, and responsiveness in the 700–1100 nm range.

With their patented optical bench and modular configuration options, the VARIUS™ NIR Enhanced and VARIUS™ OEM NIR Enhanced models are versatile solutions for those requiring accurate and reliable NIR measurements in laboratory and industrial settings. They are available with a 2048 or 4096-pixel detector.

Key Benefits

  • Enhanced NIR Sensitivity: Up to 2× improvement in sensitivity in the 700–1100 nm range
  • High Signal-to-Noise Ratio: Enables clearer, more reliable measurements in low-light conditions
  • Faster Data Transfer: Optimized time compared to backthinned models
  • Patented Optical Bench: Superior stray light performance
  • Future-Ready: Supports third-party software integration and modular upgrades

Want to learn more about how these innovative spectroscopy instruments can empower your application?  Please contact us!

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Performance AvaSpec-VARIUS™ NIR Enhanced

Both NIR Enhanced VARIUS™ Spectrometers deliver up to 2x performance increase, thanks to their upgraded detector technology. Key advantages include:

  • Smooth spectral results
  • Increased NIR quantum efficiency
  • Reliable operation under diverse conditions

Check out the performance comparison graph below, showcasing the leap beyond traditional CMOS detectors!

Quantum Efficiency Graph IR Enhanced NEXOS

Product variations

The NIR Enhanced VARIUS™ spectrometers are available in standard and industrial (OEM) variations. They come with a 2048 or 4096-pixel detector choice and feature USB3 and Gigabit Ethernet high-speed data transfer. The OEM variation has a sturdy steel housing with electromagnetic shielding and mounting ears, specifically designed for easy integration into your device or system.

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VARIUS NIR Enhanced
AvaSpec ULS2048XL OEM small
VARIUS OEM NIR Enhanced

Applications & Industries

The VARIUS™ NIR Enhanced Spectrometers are suitable for applications such as:

applications nir enhanced
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Product Information

VARIUS™ NIR Enhanced 2K VARIUS™ NIR Enhanced 4K VARIUS™ OEM NIR Enhanced 2K VARIUS™ NIR Enhanced 4K
Optical Bench Symmetrical Czerny-Turner design, 75 mm focal length; VRS bench Symmetrical Czerny-Turner design, 75 mm focal length; VRS bench Symmetrical Czerny-Turner design, 75 mm focal length; VRS bench Symmetrical Czerny-Turner design, 75 mm focal length; VRS bench
Wavelength range 400 – 1160 nm 400 – 1160 nm 400 – 1160 nm 400 – 1160 nm
Stray light 0.1 – 1% (typical value 300l/mm, blaze 300nm < 0.3%) 0.1 – 1% (typical value 300l/mm, blaze 300nm < 0.3%) 0.1 – 1% (typical value 300 l/mm, blaze 300 nm < 0.3%) 0.1 – 1% (typical value 300 l/mm, blaze 300 nm < 0.3%)
Detector NIR Enhanced CMOS linear array, 2048 pixels (14×200 μm) NIR Enhanced CMOS linear array, 4096 pixels (14×200 μm) NIR Enhanced CMOS linear array, 2048 pixels (14×200 μm) NIR Enhanced CMOS linear array, 4096 pixels (7×200 μm)
Signal / Noise 375:1 365:1 375:1 365:1
Dynamic Range 4500 4500 4500 4500
Dark Noise 15 cnts 15 cnts 15 cnts 15 cnts
AD converter 16-bit, 6 MHz 16-bit, 6 MHz 16-bit, 6 MHz 16-bit, 6 MHz
Integration time 9 µs – 30 seconds 9 µs – 30 seconds 9 µs – 30 seconds 9 µs – 30 seconds
Interface USB 3.0 high speed (5Gbps), Gigabit Ethernet (1 Gbps) USB 3.0 high speed (5Gbps), Gigabit Ethernet (1 Gbps) USB 3.0 high speed (5Gbps), Gigabit Ethernet (1 Gbps) USB 3.0 high speed (5Gbps), Gigabit Ethernet (1 Gbps)
Sample speed on-board averaging 0.38 ms /scan 0.70 ms /scan 0.38 ms /scan 0.70 ms /scan
Data transfer speed 0.38 ms/scan (USB3.0), 1.0 ms (ETH) 0.70 ms/scan (USB3.0), 1.31 ms (ETH) 0.38 ms/scan (USB3.0), 1.0 ms (ETH) 0.70 ms/scan (USB3.0), 1.31 ms (ETH)
Digital I/O HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync., strobe, laser HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync., strobe, laser HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync., strobe, laser HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital bidirectional, trigger, sync., strobe, laser
Dimensions, weight 183 x 130 x 45,2 mm, 1068 grams 183 x 130 x 45,2 mm, 1068 grams 179×110,1×44,8 mm – 799,5 grams 179×110,1×44,8 mm – 799,5 grams
Power supply Default USB3 power, 500 mA or 12 VDC, 300 mA Default USB3 power, 500 mA or 12 VDC, 300 mA Default USB3 power, 500 mA or 12 VDC, 300 mA Default USB3 power, 500 mA or 12 VDC, 300 mA
Temperature range 5 – 55 °C 5 – 55 °C 5 – 55 °C 5 – 55 °C
Useable range (nm) Spectral Range Lines/mm Blaze (nm) Order code
UV/VIS 250-850 536-532* 600 400 MN0600-0.40
VIS/NIR 300-1160** 800** 300 500 MN0300-0.50
VIS 360-1000 529-519* 600 500 MN0600-0.50
VIS 300-800 247-216* 1200 500 MN1200-0.50
VIS 350-750 147-121* 1800 500 MN1800-0.50
VIS 350-640 96-89* 2400 VIS MN2400-0.50
NIR 500-1050 515-506* 600 750 MN0600-0.75
NIR 500-1050 210-204* 1200 750 MN1200-0.75
NIR 600-1160 339-300* 830 800 MN0830-0.80
NIR 600-1160** 500** 300 1000 MN0300-1.00
NIR 600-1160 500 600 1000 MN0600-1.00

Note: a selection of starting wavelength is possible, contact us for available configurations. * Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and smaller the range to select ** Please note that not all pixels will be used for the useable range

Slit size (μm) 10 25 50 100 200 500
FHWM in nm
VARIUS™ (OEM) NIR 2K
300 lines/mm grating 1.0 1.4 2.25 4.8 9.2 21.3
600 lines/mm grating 0.40-0.53* 0.7 1.2 2.4 4.6 10.8
830 lines/mm grating 0.32 0.48 0.93 1.7 3.4 8.5
1200 lines/mm grating 0.20-0.28* 0.27-0.38* 0.52-0.66* 1.1 2.3 5.4
1800 lines/mm grating 0.10-0.18* 0.20-0.29* 0.34-0.42* 0.8 1.6 3.6
2400 lines/mm grating 0.09-0.13* 0.13-0.17* 0.26-0.34* 0.44-0.64* 1.1 2.7
VARIUS™ (OEM) NIR 4K
300 lines/mm grating 0.50-0.70 1.4 2.25 4.8 9.2 21.3
600 lines/mm grating 0.30-0.36* 0.7 1.2 2.4 4.6 10.8
830 lines/mm grating 0.25 0.48 0.93 1.7 3.4 8.5
1200 lines/mm grating 0.14-0.18* 0.27-0.38* 0.52-0.66* 1.1 2.3 5.4
1800 lines/mm grating 0.09-0.11* 0.20-0.29* 0.34-0.42* 0.8 1.6 3.6
2400 lines/mm grating 0.07-0.09* 0.13-0.17* 0.26-0.34* 0.44-0.64* 1.1 2.7

*Depends on the starting wavelength of the grating; the higher the wavelength, the bigger the dispersion and the higher the resolution.

AvaSpec-VRS2048CLIR-EVO VARIUSTM fiber-optic spectrometer, 75 mm AvaBench, 2048 pixel CMOS detector 14 x 200 μm, USB powered, high-speed USB 3.0 and ETH interface, incl. AvaSoft-Basic, USB interface cable. Specify grating, wavelength range and options (A). NIR Enhanced version
AvaSpec-VRS4096CLIR-EVO VARIUSTM fiber-optic spectrometer, 75 mm AvaBench, 4096 pixel CMOS detector 7 x 200 μm, USB powered, high-speed USB 3.0 and ETH interface, incl. AvaSoft-Basic, USB interface cable. Specify grating, wavelength range and options (A). NIR Enhanced version
AvaSpec-VRS-OEM Contact one of our offices for ordering information regarding the VARIUS™ NIR Enhanced OEM
SLIT-XX-PRS Replaceable Slit for VARIUS™ spectrometer for non OSF configurations. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 μm
SLIT-XX-PRSF Replaceable Slit for VARIUS™ spectrometer for OSF configurations. Slit size, please specify XX = 10, 25, 50, 100, 200, 500 μm
OSC Order sorting coating for grating MN 0600-0.50 and MN 0600-0.40 (>350 nm)
OSC-UA Order sorting coating for grating MN 0300-0.30 / MN 0300-0.50
OSC-UB Order sorting coating for grating MN 0600-0.30 and MN 0600-0.40 (<350 nm)
OSF-YYY-3 Order sorting filter for reduction of second-order effects, possible: YYY = 395, 475, 515, 550, or 600 nm, depending on range
DCL Detector Collection Lens. To be included

Avantes will select the optimal second order suppression based on desired configuration.

Need support or advice?

  • Feasibility Studies: Our knowledgeable sales engineers conduct complimentary feasibility studies to identify the most suitable measurement setup for your needs.
  • Demo Program: Experience our products firsthand with our demo program, allowing you to test our offerings for free and find the ideal solution for your application.
  • Support Team: Our dedicated support team is available around the clock to ensure you receive top-notch service.

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