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Bettersize - DLS Nanoparticle Size Analyzer - Nanoptic 90

Nanoptic 90 is a nanoparticle size analyzer based on the DLS (Dynamic Light Scattering) theory. It can measure nanomaterial down to 1 nanometer. Its high-power semiconductor laser device provides stable light intensity and long lifespan; while its correlator with 1000 channels and sensitive photomultiplier tube deliver measurement results with high repeatability and accuracy.

Technical specifications

Measurement Range 1-9500nm
Repeatability error ≤1% (CRM D50)
Accuracy error ≤1% (CRM D50)
Laser light source solid optical fiber laser
Sample cell volume 4ml & 1ml
Molecular weight range 1-20kDa
Sample cell temperature control range 15℃ - 90℃
Operating system WinXP/Win7/Win8/Win10
Connection Port USB 2.0 or USB 3.0
Scattering angle 90°
Detector PMT
Correlator 1000 physical channels
Environmental requirement temperature: 19-90℃; humidity:0-95%, non-condensing.
Voltage AC220V 、50/60Hz
Volume/Weight 680x440x220mm/25KG

Key features

  • Measurement: Particle size
  • Particle size range: 1 to 9500nm
  • Dispersion type: Wet
  • Technology: Dynamic Light Scattering (DLS)
  • Fast analysis: less than 5 minutes per test.
  • Small quantity of sample required: 4ml and 1ml sample cell.
  • High-precision temperature control system provides accuracy of ±0.5°C.
  • Repeatability: ≤1% (GBRM D50)
  • Accuracy: ≤1% (GBRM D50)
  • Scattering angle: 90°
  • Detector: PMT (Photomultiplier)

Bettersize has become a significant player in the particle sizing business since 1995. We are a team of ~160 employees dedicated to share our expertise to satisfy your instrument and application requirements with reliable products and first-class services.


As the leading particle size analyzer manufacturer in China in terms of brand reputation, sales volume and most important quality, Bettersize spare no efforts on R&D each year. We offer a variety of products from basic to advanced research equipment, deliver precise analysis of materials from nanometer to millimeter, and assist scientists and engineers to understand material properties, facilitate research, and improve production efficiency.


Focused on technology innovation, product manufacturing, application research, and after sale service, Bettersize is making the particle size analyzer of China enter into the international advanced ranks.