NWSPEC
SR20 Compact Miniature Spectrometer | Color & Light Measurement
SR20 Compact Miniature Spectrometer | Color & Light Measurement
SR20 Micro Optical Fiber Spectrometer
Application Order Guide
Select the appropriate configuration for your analytical application. Each system is built from modular components to match your specific measurement requirements.
SR20 Key Advantages
Ultra-Compact 80 x 63 x 34mm footprint. Lightweight design for portable and OEM integration applications.
Broad Wavelength Range 200–1100nm coverage. 2048-pixel CMOS linear sensor. Resolution from ~0.8nm to ~2.0nm FWHM.
Flexible Integration USB 2.0, RS232, RS485 interfaces. Cross-platform SDK: C++, C#, Python, LabVIEW. SMA905 fiber input.
Modular Configuration F/4 Czerny-Turner optics. 40mm or 60mm focal length. 70μm standard slit (customizable). OEM licensing available.
1
Select Application Type
Match your measurement need to the recommended system configuration
Spectroradiometer / Radiometry
Irradiance, radiance, and luminance measurements for light source characterization and photometric testing.
Wavelength: 200-1100nmApplications: LED testing, solar simulation, display measurementRecommended: UV-NIR Spectrometer + D2/W Source + Integrating Sphere
Colorimetry / Color Analysis
Precise color measurement and quality control for manufacturing and product development.
CIE 1931/1976 color space complianceApplications: Display, textile, paint, plastic QCRecommended: UV-Vis Spectrometer + LED Source + Integrating Sphere
Hyperspectral Imaging
Spatial-spectral analysis for advanced research, remote sensing, and industrial inspection.
High spatial and spectral resolutionApplications: Agriculture, minerals, biomedical imagingRecommended: High-Resolution Spectrometer + Tungsten Source + Optical Lens
Environmental Monitoring
Water quality, atmospheric, and pollution detection for laboratory and field deployment.
UV-Vis absorption spectroscopyApplications: Water COD, oil detection, gas analysisRecommended: UV-Vis Spectrometer + D2/W Source + Immersion Probe
Portable / Handheld Measurement
Compact, battery-powered configuration for field and on-site color or radiometric testing.
Integrated touchscreen controlApplications: Field color check, portable photometryRecommended: UV-Vis Spectrometer + LED Source + Touchscreen + Rigid Fiber
OEM / System Integration
Compact module designed for integration into third-party instruments and automated systems.
Small footprint: 80 x 63 x 34mmApplications: Embedded analytical devices, process controlRecommended: Custom spectrometer + SDK + API integration
2
Select Spectrometer Core
Detector type and wavelength range
| Configuration | Specifications | Code | Best For |
|---|---|---|---|
| UV-Vis (200-850nm) | 2048-pixel CMOS linear sensor. Resolution ~1.5nm FWHM. Integration time: 0.4ms-1000ms. Signal-to-noise: 400:1. | UVV | General analytical, colorimetry, portable use |
| UV-NIR (200-1100nm) | 2048-pixel CMOS linear sensor. Resolution ~2.0nm FWHM. Extended NIR sensitivity. Integration time: 0.4ms-1000ms. | UVN | Full-range analysis, radiometry, environmental |
| High Resolution (UV-Vis) | 3648-pixel CMOS linear sensor. Resolution ~0.8nm FWHM. High pixel density for fine feature detection. | HRS | Laser characterization, high-precision research |
Optical Platform Note All configurations use F/4 crossed Czerny-Turner optical path. Focal length options: 40mm or 60mm. Standard slit: 70μm (customizable). Fiber interface: SMA905, 0.22NA.
3
Select Light Source
Illumination matched to your wavelength range and application
| Source | Specifications | Code | Best For |
|---|---|---|---|
| Deuterium + Tungsten (D2/W) | Full UV-Vis-NIR coverage: 200-1100nm. Output stability: ±0.5%. Combined broad-spectrum output. | D2W | Transmission, absorbance, full-range analysis |
| LED Source (Visible) | Stable visible output: 400-700nm. Lifetime: >50,000 hours. Low power consumption. | LED | Colorimetry, fluorescence, portable systems |
| Tungsten-Halogen (Vis-NIR) | Economical visible to NIR: 350-2500nm. High output in NIR region. Stable thermal output. | THL | Reflectance, NIR analysis, hyperspectral |
| Xenon Source (Pulsed) | High-intensity UV-Vis pulsed output. Ideal for fluorescence and time-resolved measurements. | XEN | Fluorescence, flash photolysis, transient analysis |
4
Select Fiber & Sampling Accessories
Probes, optics, and interfaces for your sample type
Standard Fiber Bundle
General-purpose fiber optic cable for standard laboratory setups.
Core diameter: 400μm, 600μm, or 1000μmLength: 1m, 2m, or customConnector: SMA905Code: FIB
Reflection / Back Scatter Probe
Y-type probe for diffuse reflectance and back scatter measurements on solid samples.
6-around-1 fiber configurationOptional focusing lens tipBest for: Powders, solids, coatingsCode: RFP
Immersion / Dip Probe
Submersible probe for direct liquid transmission and online process monitoring.
Pathlength: 2mm, 5mm, or 10mmMaterial: Stainless steel / HastelloyBest for: Water, chemicals, process streamsCode: DIP
Integrating Sphere
Uniform light collection for total flux, diffuse reflectance, and color measurements.
Diameter: 38mm or 50mmCoating: PTFE (Spectralon equivalent)Best for: LED testing, color analysis, reflectanceCode: ISP
Optical Lens / Collimator
Focusing optics for free-space light collection and beam shaping.
Focal lengths: Multiple optionsInterface: SMA905 or direct mountBest for: Remote sensing, beam analysisCode: LEN
Touchscreen Controller
Integrated LCD touchscreen for standalone portable operation without PC.
Display: High-resolution color LCDInterface: Direct spectrometer controlBest for: Field use, handheld systemsCode: TSP
Beam Splitter / Filter
Optical components for beam division, attenuation, or wavelength selection.
Types: 50/50 splitter, ND filters, bandpassMount: Standard optical mountBest for: Dual-beam setups, intensity controlCode: BSF
Underwater / Submersible Probe
Sealed probe assembly for underwater and harsh environment measurements.
Depth rating: CustomizableMaterial: Marine-grade housingBest for: Oceanography, water qualityCode: UWP
5
Select Software Package
Control and analysis software level
| Package | Features | Code | Best For |
|---|---|---|---|
| Basic Control | Real-time spectral display, data acquisition, basic math (smoothing, derivative), export to CSV/TXT/SPC. | BAS | Standard laboratory use, teaching |
| Advanced Analysis | Full chemometrics: PLS, PCA, MLR. Color analysis (CIE, CRI, CCT, CQS). Custom method builder. Report generation. | ADV | QC labs, colorimetry, quantitative analysis |
| SDK / API | Full hardware control API. Languages: C++, C#, Python, LabVIEW. Example code and documentation included. OEM licensing. | SDK | System integrators, OEM partners, custom apps |
Operating System Support Software compatible with Windows, Android, Linux, and Wince. Communication interfaces: USB 2.0, RS232, RS485. Extended 10-pin port with external trigger capability.
6
Model Naming Reference
How to construct your complete order code
| Position | Component | Available Codes |
|---|---|---|
| Base | Platform | SR20 |
| 1 | Application Type | RAD / COL / HYP / ENV / POR / OEM |
| 2 | Spectrometer | UVV / UVN / HRS |
| 3 | Light Source | D2W / LED / THL / XEN |
| 4 | Fiber / Accessory | FIB / RFP / DIP / ISP / LEN / TSP / BSF / UWP |
| 5 | Software | BAS / ADV / SDK |
EXAMPLE CONFIGURATION
SR20-RAD-UVN-D2W-ISP-ADV
Spectroradiometer application — UV-NIR spectrometer — Deuterium/Tungsten source — Integrating Sphere — Advanced analysis software
EXAMPLE CONFIGURATION
SR20-ENV-UVV-D2W-DIP-BAS
Environmental monitoring — UV-Vis spectrometer — Deuterium/Tungsten source — Immersion probe — Basic control software
Lead Time Standard configurations: 2 weeks from order confirmation. Custom builds and OEM projects may require additional time — confirm with sales when ordering.
Customization & OEM Services Special wavelength ranges, resolution requirements, mechanical configurations are available upon request. Contact our technical team to discuss custom builds, private labeling, and OEM integration support.
Technical Support Not sure which configuration matches your application? Send your measurement requirements (sample type, wavelength range, resolution needs, environment) to our team for a recommended build.
Request a Quotation
Provide your configuration code or application requirements. Our team will confirm specifications, pricing, and lead time (typically 2 weeks) within 24 hours.
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Since 1993
30+ Years of Instrument Expertise
Reliable Manufacturer
Manufacturing & Services
Ph.D. Founded
Dr. Pingxin Wang, UT Austin
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Frequently Asked Questions
How can I contact you?
Feel free to call us T+86 189-6516-4839
or email sales@nwspec.com to:
• Place an order
• Ask for a quote
• Or if you have any other questions
You will always get a live person here at NWSPEC; never an automated system!
We are open from 6:00AM - 7:00PM Eastern Time, Monday - Friday.
Where can I find application notes?
If you have any questions regarding the application notes, or can't find the one you are looking for, please contact Sales at sales@nwspec.com
Do you have instructional manuals for your instruments to download?
Yes, we have instructional manuals for our instruments. They can be found on https://nwspec.com/pages/resource .
If you don't see the one you are looking for, please contact: sales@nwspec.com