Premium-grade Reflection Probes


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Premium Reflection Probe

Our premium-grade reflection and backscattering probes are durable, high-quality patch cords that consistently deliver uniform results with minimal signal variance. Available in a variety of fiber core sizes and wavelength ranges, they are a convenient way to measure specular or diffuse reflectance from a surface. Our 600 μm core probes can even be used to excite and sense fluorescence from solid samples.

Also consider our:
  • Great for field and industrial use, or other rough handling environments
  • Superior quality and handling for aesthetically demanding applications like medical labs
  • 6-around-1 fiber bundle design
  • 6-fiber leg connects to light source, single-fiber leg connects to spectrometer for best performance

Engineering Specifications Premium-grade Reflection Probes
Probe ferrule material: Stainless steel
Probe ferrule length: 76.2 mm (3″)
Probe ferrule diameter: 6.35 mm (1/4″) unless otherwise noted (3.175 mm / 1/8″ for QR600 probes)
Probe fiber bundle: 6 illumination fibers around 1 read fiber
Numerical aperture: 0.22 ± 0.02 (equivalent to an acceptance angle of 24.8° in air)
Jacket: Standard fibers: Silicone-coated steel monocoil with a Nomex braid for superior strain relief and protection
“-BX” fibers: Stainless steel BX
Connectors: Precision SMA 905 with knurled ferrule
Length: 2 m
Breakout: Midway point of assembly at 1 meter
Fiber core size: 200 – 600 μm (see product variations table for options)
Wavelength range: XSR, SR, UV/VIS, VIS/NIR (see product variations table for options)
Fiber buffer: See Fiber Bend Radius and Mechanical Specifications for details
Bend radius: See Fiber Bend Radius and Mechanical Specifications for details
Operating temperature: -20 °C to 80 °C


Fiber Extreme Solarization Resistant
(180 – 800 nm)
Solarization Resistant 
(200 – 1100 nm)
(300 – 1100 nm)
(400 – 2100 nm)
200 µm QR230-7-XSR QR200-7-UV-VIS QR200-7-VIS-NIR
QR200-7-UV-BX QR200-7-VIS-BX
400 µm QR450-7-XSR QR400-7-SR QR400-7-UV-VIS QR400-7-VIS-NIR
QR400-7-SR-BX QR400-7-UV-BX QR400-7-VIS-BX
600 µm QR600-7-SR-125F QR600-7-UV-125F QR600-7-VIS-125F
QR600-7-SR125BX QR600-7-UV125BX QR600-7-VIS125BX

Looking for a backscatter probe for use in liquids and powders?

Don’t see the length or configuration you need?  Have us build a custom reflection probe for you!


Applications in which this product is used:

Measurement Techniques in which this product is used:

Application Notes: