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The latest addition to our CompactLine: the AvaSpec-Mini-NIR!

The AvaSpec-Mini-NIR is a compact near-infrared spectrometer, based on a combination of our popular AvaSpec-NIR256-1.7-EVO and Mini-series.

Like our other CompactLine spectrometers, this device is only the size of a deck of cards and USB powered, which makes it easy to integrate into other devices, including but not limited to OEM handheld applications. Since the AvaSpec-Mini-NIR has no moving parts it is very robust and can be used virtually any environment!

Of course, the AvaSpec-Mini-NIR works seamlessly with our AvaSoft software and the Windows and Linux libraries we have available.

If size is not the most important factor for your application, we recommend the AvaSpec-Mini-NIR's bigger brother, the AvaSpec-NIR256-1.7-EVO that is bigger in size but offers slightly higher sensitivity levels. 

AvaSpec Mini NIR 740 x 540 p

Application examples

This versatile miniature NIR spectrometer is well suited for various applications, including food analysis and the recycling industry. Below are some application examples for this instrument:

Technical Data

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 (40 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 x 5V
Power supply Default USB power, 500 mA
Dimensions, weight 95 x 68 x 20 mm, 185 g
Temperature range 0-55°C


Grating Selection Table

Use  Useable range (nm)  Spectral range (nm)  Lines/mm  Blaze (nm)  Order code 
NIR 900-1750 725 200 1550 NIR200-1.6
NIR 900-1495 330-320 400 1210 NIR400-1.2
NIR 1250-1700 315-310 400 1600 NIR400-1.6
NIR 900-1450 210-195 600 1280 NIR600-1.3
NIR 1350-1735 185-170 600 1669 NIR600-1.7

Resolution Table

Slit size (µm)
Grating (lines/mm) 50 100 200 500
200 6 12 24 50
400 3 6 12 25
600 2 4 8 18
*Typical values. Small deviations are possible.

Ordering Information


Miniature NIR fiber-optic spectrometer, 75 mm focal length, 256 pixel InGaAs detector, USB2 powered interface. 


Preconfigured miniature NIR spectrometer for non-OEM users, NIR 256 pixels, grating-MN200-1.5 set for 975-1700nm, OSF850, 50µm slit, USB2 powered interface, includes AvaSoft-FULL

Specify grating, wavelength range and options. Other gratings available on request. 


Slit size, please specify XX = 50, 100, 200 or 500 µm
For non-OEM users, a preconfigured model will be available upon release.