Near Infrared (NIR) Spectrometers- 900-2500 nm

We offer highest spectral performance between 900-2500 nm in a compact footprint. Ideal for both laboratory and OEM applications.

For measurements in the NIR region of 900 to 2500 nm, Avantes has developed a line-up of NIRLine NIR spectrometers. Starting at the affordable AvaSpec-NIR256-1.7, also available with replaceable slit, the line-up features the most sensitive cooled near infrared spectrometers on the market, up to 2500 nm.

The NIRLine is comprised of both thermo-electrically cooled and un-cooled instruments. AvaSpec-NIR256-1.7 features an uncooled 256 pixel InGaAs detector.  All other instruments in the NIRLine have thermo-electric, peltier-cooled InGaAs detectors which support cooling down to -25°C against ambient. AvaSpec NIRLine instruments are fully compatible with our AvaSpec StarLine and SensLine spectrometers. Avantes’ AvaSpec NIRLine instruments are available as laboratory instruments or OEM modules. AvaSpec NIRLine instruments are available with a number of premium options such as irradiance/intensity calibration and non-linearity calibration.The AvaSpec NIRLine of instruments are designed to perform in a variety of applications such as:

  • Moisture content measurement of
  • liquids, solids and powders for inline and quality control purposes
  • Quantitative and qualitative measurement of volatile organics such as ethanol, and methanol
  • Plastic characterization and material identification
  • Irradiance measurements, such as solar monitoring
  • Qualitative measurements of feed and food

Selected models feature the High Sensitivity/Low Noise setting, an easy choice between the highest possible sensitivity and he lowest possible noise, right from AvaSoft 8. Request price and delivery for all NIR Spectrometers

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New Mini NIR Spectrometer
900-1750 nm

Our new Mini NIR Spectrometer is designed to deliver top performance at a disruptive low price. USB powered with 900-1750 nm spectral coverage,

Optical bench Symmetrical Czerny-Turner, 75 mm focal length, MK II
Wavelength range 900-1750 nm
Stray light 1%
Sensitivity HS in counts/µW per ms  665,000 (integral 1000-1750 nm)
Dynamic range HS 4750:1
Integration time HS 10 µs – 300 ms
Signal/noise HS 1900:1
Dark noise HS 14 counts
Sensitivity LN in counts/µW per ms 38,000 (integral 1000-1750 nm)
Dynamic range LN 7500:1
Integration time LN 10 µs – 5 seconds
Signal/noise LN 5000:1
Dark noise LN 9 counts
Detector InGaAs array, 256 pixels
AD converter 16-bit, 500 kHz
Interface USB2.0 (480 Mbps)/pigtailed (50 cm) USB-A
Sample speed with store to RAM 0.53 ms/scan
Data transfer speed 1.2 ms/scan
I/O 5 bidirectional programmable I/O: 1 analog out, 1 analog in, 1

TE Cooled NIR Spectrometer
900-1750 nm


Select one our TE cooled NIR spectrometers when you need higher sensitivity and longer exposure times. 

Spectrometer AvaSpec-NIR256-1.7-HSC-EVO AvaSpec-NIR512-1.7-HSC-EVO
Optical Bench Symmetrical Czerny-Turner, 100 mm focal length, 1 stage TE cooled
Wavelength range 900 – 1750 nm
Resolution 1.9 – 32 nm 1.7 – 32 nm
Stray light <1%
Sensitivity HS in counts/µW per ms integration time 4,800.000 (integral 1000-1750 nm) 2,500,000 (integral 1000-1750 nm)
Dynamic Range HS 4900:1
Signal/Noise HS 1900:1
Integration time HS 20 µs – 500 ms
Sensitivity LN in counts /µW per ms integration time 160,000 (integral 1000-1750 nm) 83,000 (integral 1000-1750 nm)
Dynamic Range LN 7600:1
Signal/Noise LN 5000:1
Integration time LN 20 µs – 20 seconds
Detector TE-cooled InGaAs linear array, 256 pixels, 50 µm x 500 µm TE-cooled InGaAs linear array, 512 pixels, 25 µm x 500 µm
AD converter 16 bit, 1.2 MHz
Interface USB 3.0 high speed, 5 Gbps, Gigabit Ethernet 1 Gbps
Sample speed with store to RAM 0.13 ms/scan 0.24 ms/scan
Data transfer speed 0.4 ms/scan (USB3) 0,53 ms/scan (USB3)
Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 13 Digital IO bi-directional, trigger, synchronization, strobe, laser
Power supply 12VDC, 12W
Operating temperature range 0 – 40°C
Cooling 24°C
Dimensions, weight 185 x 160 x 184 mm, 3.6 Kg

TE Cooled NIR Spectrometers
1000-2500 nm


For extended spectral coverage out to 2500 nm, select one of these models. We can configure to you exact requirements for spectral range and resolution.

Spectrometer AvaSpec-NIR256-2.5-HSC-EVO AvaSpec-NIR512-2.5-HSC-EVO
Optical Bench TE-cooled symmetrical Czerny-Turner,
100 mm focal length
Wavelength range 1000 – 2500 nm
Resolution (slit & grating dependent) 4.4 – 85.0 nm 2.6 – 85.0 nm
Pixel Dispersion (with NIR0751.7 grating) 6.2 nm 3.1 nm
Stray-light <1.0%
Sensitivity HS in counts / µW per ms

(1000-2500 nm)

990,000 480,000
Signal/Noise HS 1800:1 1900:1
Integration time HS 10 µs – 5 ms
Sensitivity LN in counts / µW per ms

(1000-2500 nm)

55,000 26,600
Signal/Noise LN 4000:1 3700:1
Integration time LN 10 µs – 100 ms
Detector InGaAs linear array with 2 stage TE-cooling, 256 / 512 pixels
Pixel size (WxH) 50 µm x 250 µm 25 µm x 250 µm
AD converter 16 bit, 500 kHz
Interface USB 3.0 high speed, 5 Gbps
Gigabit Ethernet 1 Gbps
Sample speed with on-board averaging 0.54 ms/scan
Data transfer speed 1.11 ms/scan (USB3)
Digital IO HD-26 connector, 2 Analog in, 2 Analog out, 3 Digital in, 12 Digital out, trigger, synchronization
Power supply 12 V, 40W
Temperature range 0 – 40 °C
Cooling 45 °C versus ambient
Dimensions, weight 185 x 145 x 185 mm, 3.5 kg