WP UV-VIS Spectrometer

We’ve maximized the efficiency of our spectrometers to give you more sensitivity, better SNR, and faster measurements in a compact footprint. Collect more light with our f/2.0 input, keep more light with our patented high transmission VPH gratings & diffraction-limited optics, and detect more light with scientific-grade detectors. Our build-to-print options for resolution, detector cooling, and sample coupling allow you to configure a spectrometer or system with the exact performance you need, powered by our free ENLIGHTEN™ spectroscopy software.
WP UV-VIS Spectrometer Features/Benefits:
- Wavelength range is 250 – 850 nm
- Industry-leading high efficiency optics
- f/2.0 input to capture more light
- Patented VPH transmission gratings
- High sensitivity for fast data sampling rates
- Linear absorbance up to 3.2 AU @ 300 nm
- Low stray light for superior LOD
- Fiber coupled & free space models
- Compact, robust & configurable
- Uncooled (-A) or TEC-cooled (-C) detector
The WP UV-VIS spectrometer may be configured with your choice of slit size and sample coupling (fiber coupled or free space), and detector cooling. Custom wavelength range models down to 220 nm are available upon request, so call us to discuss your OEM needs!
Specification | Value |
---|---|
F/# | 2.0 |
Slit height | 2mm |
Spectral range | 250 – 900 nm (A) | 250 – 850 nm (C) |
Resolution 25 um slit | 2.5 nm (A) | 2.3 nm (C) |
Resolution 50 um slit | 3.5 nm (A) | 3.2 nm (C) |
Fiber port | SMA 905 (fiber coupled model) ; free space coupled model available |
Size | 16.0 x 14.5 x 6.0 cm |
Specification | Value |
---|---|
Detector type and model | Hamamatsu S10420-1106 (A) | S7031-1006 (C) |
Active pixels | 2048 x 64 (A) | 1024 x 58 (C) |
Pixel dimensions | 14 x 14 μm (A) | 24 x 24 μm (C) |
Quantum efficiency max | 70% average /77% peak (A) | 74% average /93% peak (C) |
Integration period range | 1 ms – 60 s (A) | 8 ms – 60 s (C) |
Signal to noise | 500:1 (A/R) | 1000:1 (C) |
Dynamic range system | 50,000 (A) | 125,000 (C) |
Read noise | 6 e- RMS (A) | 8 e- RMS (C) |
Optical regulated detector | 10°C (R) | -15°C (C) |
Regulated detector temperature stability | ± 0.2°C (R) | ± 0.1°C (C) |
Cooling controls | ON/OFF/LOCK |
System operating temperature range | 0°C to 40°C, non-condensing |
Data interval | USB 2.0 Type B connector (female) |
Software | ENLIGHTEN™ operating software & drivers are included |
We believe you should have full control and maximum flexibility when configuring your spectrometer. That’s why we offer so many build-to-print options for range, resolution, detector cooling, and sample coupling – backing each with our advice and experience. Learn more about each below, or contact us to discuss the best options for your application.
SLIT WIDTH: Defining Resolution
Sensitivity and resolution are competing factors when choosing slit size. A larger slit allows more light to enter the spectrometer, increasing sensitivity for low-light applications such as fluorescence. Resolution improves, however, as slit width is reduced (though not always linearly). We offer 25, and 50 μm slits for the WP UV-VIS spectrometer, and can advise on the best choice for your application. Due to the high sensitivity of our low f/# spectrometer designs, it is often possible to use a smaller slit width than would be required with a typical f/4 spectrometer, allowing you to achieve higher resolution.
SAMPLE COUPLING:
Fiber coupling to spectrometer
Our f/2.0 design delivers superior signal and ultra low background when used with matched NA fibers (0.24). This simplifies sample alignment in the lab or field.
DETECTOR COOLING: Controlling noise
We offer ambient (-A) and TEC cooled (-C) detector options for the WP UV-VIS, allowing you to balance your required signal to noise ratio (SNR) and temperature stability with cost for the best possible value.
An uncooled detector is often adequate for many basic spectroscopy applications, but for lowest limit of detection and long term measurements, a thermoelectrically cooled (TEC) detector delivers unparalleled performance. Contact us to discuss the right choice for your application.
AMBIENT (-A) |
TEC COOLED (-C) |
|
Detector temperature | Room temp (≈ 25°C) | -15°C |
Benefits | Most cost effective option for quick measurements | Lowest dark noise option – highly consistent |
Signal to noise | Good SNR high throughput detector | Best SNR for lowest limits of detection |
Applications | Best for teaching and lab environments | Ideal for long integration time measurements |
Product sheet (click to download):
Brochures (click to download):
- WP Spectroscopy Solutions > Overview of our spectrometers & accessories, design advantages, and applications
Tech notes (click to open):
- Why Wasatch for Spectroscopy? > See the data to validate our faster measurements, low LOD, high SNR, and excellent mechanical stability.
- The Wasatch Advantage > Explore the optical design of our spectrometers and their performance benefits.
WP VIS Spectrometer

We’ve maximized the efficiency of our VIS spectrometer to give you more sensitivity, better SNR, and faster measurements in a compact footprint. Collect more light with our f/1.3 input, keep more light with our patented high transmission VPH gratings & diffraction-limited optics, and detect more light with scientific-grade detectors. When tested side by side, our spectrometers consistently outperform larger, more expensive units. From sample coupling to detector cooling, we give you more options to get the exact performance you need, powered by our free ENLIGHTEN™ spectroscopy software.
WP VIS Spectrometer Features/Benefits:
- Wavelength range is 400 – 800 nm
- f/1.3 input to capture more light
- High efficiency transmissive VPH gratings
- >10x greater sensitivity & lower LOD
- Low stray light and high signal to noise (SNR)
- Fiber coupled or free space models
- Compact, robust & configurable
- Excellent thermal stability
- OEM models available
- Uncooled (-R) or TEC-regulated (-C) detector
The WP VIS spectrometer may be configured with your choice of slit size and sample coupling (fiber coupled or free space). Custom wavelength range models are available upon request, so call us to discuss your OEM needs!
Need a broader range extending into the NIR? Try our WP VIS-NIR spectrometer, covering 400-1080 nm.
Specification | Value |
---|---|
F/# | 1.3 |
Slit height | 2mm |
Spectral range | 400 – 800 nm |
Resolution 25 um slit | 1.5 nm |
Resolution 50 um slit | 2.5 nm |
Fiber port | SMA 905 (fiber coupled model) ; free space coupled model available |
Size | SIZE: 16.5 x 12.7 x 5.1 cm |
Specification | Value |
---|---|
Detector type and model | Hamamatsu S10420-1006 CCD |
Active pixels | 1024 x 64 |
Pixel dimensions | 14 x 14 μm (A) | 24 x 24 μm (C) |
Quantum efficiency max | 76% average / 78% peak |
Integration period range | 7 ms – 60 s |
Signal to noise | 500:1 |
Dynamic range system | 50,000 |
Read noise | 6 e- RMS |
Optical regulated detector | 10°C (regulated models) |
Regulated detector temperature stability | ± 0.2°C |
Cooling controls | ON/OFF/LOCK |
System operating temperature range | 0°C to 40°C, non-condensing |
Data interval | USB 2.0 Type B connector (female) |
Software | ENLIGHTEN™ operating software & drivers are included |
We believe you should have full control and maximum flexibility when configuring your VIS spectrometer. That’s why we offer so many build-to-print options for range, resolution, detector cooling, and sample coupling – backing each with our advice and experience. Learn more about each below, or contact us to discuss the best options for your application.
SLIT WIDTH: Defining Resolution
Sensitivity and resolution are competing factors when choosing slit size. A larger slit allows more light to enter the spectrometer, increasing sensitivity for low-light applications such as fluorescence. Resolution improves, however, as slit width is reduced (though not always linearly). We offer 25 and 50 μm slits for our VIS spectrometer, and can advise on the best choice for your application. Due to the high sensitivity of our low f/# spectrometer designs, it is often possible to use a smaller slit width than would be required with a typical f/4 spectrometer, allowing you to achieve higher resolution.
SAMPLE COUPLING: Fiber or free-space?
How you interface with your sample can vary depending on the type of sample, environment, and the goals of your measurement. Whether you need to sample remotely or create a compact design, we have options for you. The sampling coupling option is chosen at time of spectrometer order, but can be exchanged by special order.
Fiber coupling to spectrometer (-SMA)
Using a fiber to route light to and from your sample is both flexible and convenient, and can help to minimize interference from ambient light in the measurement path. To get superior signal and ultra low background from our f/1.3 design WP VIS spectrometer, we recommend the use of matched NA fibers (0.36-0.39). The image at left shows the SMA connector input to our spectrometer. A custom FC/PC input is available upon request (-FC).
Free-space coupling to spectrometer – open slit (-FO)
Coupling light directly into a spectrometer slit gives you the freedom to design your own sampling optics, controlling parameters like sampling spot size and working distance. This approach is good for creating compact systems while minimizing coupling losses due to fibers, and is ideal for research & OEMs. Our WP VIS spectrometer has a 0.36 NA input (shown at left), accepting light up to 21° off axis (42° full angle).
Free-space coupling to spectrometer – collimating lens (-FL)
Our collimating lens input option allows you to employ free-space coupling to your spectrometer with a more limited field of view. The integrated collimating lens is perfectly matched to the WP VIS 0.36 NA design to focus light onto the slit. This option is compatible with our quick-fit cuvette holders used for absorption, transmission, and fluorescence measurements. It can also be used to couple directly to a microscope, other optics, or for directional sensing.
DETECTOR COOLING: Controlling noise
We offer ambient and TEC-regulated detectors for the WP VIS spectrometer, allowing you to balance your required signal to noise ratio (SNR) and temperature stability with cost for the best possible value.
An uncooled detector is often adequate for many basic spectroscopy applications, but for uncontrolled environments, a thermoelectrically regulated (TEC-regulated) detector offers better noise floor stability. Contact us to discuss the right choice for your application.
AMBIENT (-A) |
TEC-REGULATED (-R) |
|
Detector temperature | Room temp (≈ 25°C) | 10°C |
Benefits | Most cost effective option for quick measurements; lower power consumption | Fixed dark noise (better measurement reproducibility) |
Signal to noise | Good SNR high throughput detector | Improved SNR compared to ambient detector |
Applications | Best for teaching and lab environments | Great for variable environments |
Product sheet (click to download):
Brochures (click to download):
- WP Spectroscopy Solutions > Overview of our spectrometers & accessories, design advantages, and applications
Tech notes (click to open):
- Why Wasatch for Spectroscopy? > See the data to validate our faster measurements, low LOD, high SNR, and excellent mechanical stability.
- The Wasatch Advantage > Explore the optical design of our spectrometers and their performance benefits.
WP VIS-NIR Spectrometer

We’ve maximized the efficiency of our VIS-NIR spectrometer to give you more sensitivity, better SNR, and faster measurements in a compact footprint. Collect more light with our f/2 input, keep more light with our patented high transmission VPH gratings & diffraction-limited optics, and detect more light with scientific-grade detectors. When tested side by side, our spectrometers consistently outperform larger, more expensive units. From sample coupling to detector cooling, we give you more options to get the exact performance you need, powered by our free ENLIGHTEN™ spectroscopy software.
VIS-NIR Spectrometer Features/Benefits:
- Wavelength range is 400 – 1080 nm
- f/2 input to capture more light
- High efficiency transmissive VPH gratings
- >10x greater sensitivity & lower LOD
- Low stray light and high signal to noise (SNR)
- Fiber coupled or free space models
- Compact, robust & configurable
- Excellent thermal stability
- OEM models available
- Uncooled (-A) or TEC-regulated (-R) detector
Need a narrower range with higher resolution? Try our WP VIS spectrometer, covering 400-800 nm.
Specification | Value |
---|---|
F/# | 2.0 |
Slit height | 2mm |
Spectral range | 400 – 1080 nm |
Resolution 10 um slit | 1.5 nm |
Resolution 25 um slit | 2 nm |
Resolution 50 um slit | 4 nm |
Fiber port | SMA 905 (fiber coupled model) ; free space coupled model available |
Size | 16.5 x 12.7 x 5.1 cm |
Specification | Value |
---|---|
Detector type and model | Hamamatsu S10420-1006 CCD |
Active pixels | 1024 x 64 |
Pixel dimensions | 14 x 14 μm |
Quantum efficiency max | 76% average / 78% peak |
Integration period range | 7 ms – 60 s |
Signal to noise | 500:1 |
Dynamic range system | 50,000 |
Read noise | 6 e- RMS |
Optical regulated detector | 10°C (regulated models) |
Regulated detector temperature stability | ± 0.2°C |
Cooling controls | ON/OFF/LOCK |
System operating temperature range | 0°C to 40°C, non-condensing |
Data interval | USB 2.0 Type B connector (female) |
Software | ENLIGHTEN™ operating software & drivers are included |
We believe you should have full control and maximum flexibility when configuring your VIS-NIR spectrometer. That’s why we offer so many build-to-print options for range, resolution, detector cooling, and sample coupling – backing each with our advice and experience. Learn more about each below, or contact us to discuss the best options for your application.
SLIT WIDTH: Defining Resolution
Sensitivity and resolution are competing factors when choosing slit size. A larger slit allows more light to enter the spectrometer, increasing sensitivity for low-light applications such as fluorescence. Resolution improves, however, as slit width is reduced (though not always linearly). We offer 25 and 50 μm slits for our VIS-NIR spectrometer, and can advise on the best choice for your application. Due to the high sensitivity of our low f/# spectrometer designs, it is often possible to use a smaller slit width than would be required with a typical f/4 spectrometer, allowing you to achieve higher resolution.
SAMPLE COUPLING: Fiber or free-space?
How you interface with your sample depends not only on whether you value convenience or configurability, but also on the data quality you require. See below for some quick tips.
Fiber coupling to spectrometer
Our f/2.0 design delivers superior signal and ultra low background when used with matched NA fibers (0.22-24). Simplifies sample alignment in the lab or field.
Free-space coupling to spectrometer
This 0.24 NA input offers superior signal & freedom in the design of your own sampling optics, from spot size to working distance. Ideal for research & OEMs.
DETECTOR COOLING: Controlling noise
We offer ambient and TEC-regulated detectors for the WP VIS-NIR spectrometer, allowing you to balance your required signal to noise ratio (SNR) and temperature stability with cost for the best possible value.
An uncooled detector is often adequate for many basic spectroscopy applications, but for uncontrolled environments, a thermoelectrically regulated (TEC-regulated) detector offers better noise floor stability. Contact us to discuss the right choice for your application.
AMBIENT (-A) |
REGULATED (-R) |
|
Detector temperature | Room temp (≈ 25°C) | 10°C |
Benefits | Most cost effective option for quick measurements | Fixed dark noise (better spectral reproducibility) |
Signal to noise | Good SNR high throughput detector | Improved SNR compared to ambient detector |
Applications | Best for teaching and lab environments | Great for variable environments & handheld use |
Product sheet (click to download):
Brochures (click to download):
- WP Spectroscopy Solutions > Overview of our spectrometers & accessories, design advantages, and applications
Tech notes (click to open):
- Why Wasatch for Spectroscopy? > See the data to validate our faster measurements, low LOD, high SNR, and excellent mechanical stability.
- The Wasatch Advantage > Explore the optical design of our spectrometers and their performance benefits.
WP NIR Spectrometer

We’ve maximized the efficiency of our NIR spectrometer series to give you more sensitivity, better SNR, and faster measurements in a compact footprint. Collect more light with our f/1.3 input, keep more light with our patented high transmission VPH gratings & diffraction-limited optics, and detect more light with scientific-grade detectors. When tested side by side, our spectrometers consistently outperform larger, more expensive units. From sample coupling to detector cooling, we give you more options to get the exact performance you need, powered by our free ENLIGHTEN™ spectroscopy software.
WP NIR I Spectrometer Features/Benefits:
- Wavelength range is 900 – 1700 nm
- f/1.3 input to capture more light
- High efficiency transmissive VPH gratings
- Low stray light and high signal to noise (SNR)
- TEC Cooled InGaAs array with low noise electronics
- Fiber coupled or free space models
- Compact, robust & configurable
- Excellent thermal stability
- OEM models available
Specification | Value |
---|---|
F/# | 2.0 |
Slit height | 2mm |
Spectral range | 900 – 1700 nm |
Resolution 25 um slit | 5 nm |
Resolution 50 um slit | 6 nm |
Fiber port | SMA 905 (fiber coupled model) ; free space coupled model available |
Size | 16.5 x 12.7 x 5.1 cm |
Specification | Value |
---|---|
Detector type and model | Hamamatsu G9214-512S InGaAs array |
Active pixels | 512 |
Pixel dimensions | 25 x 500 μm |
Quantum efficiency max | 82% average / 84% peak |
Integration period range | 1 ms – 60 s |
Signal to noise | 2400:1 |
Dynamic range system | 16,666 |
Read noise | 180 e- RMS |
Optical regulated detector | TEC cooling to -15°C on all units |
Regulated detector temperature stability | ± 0.1°C |
Cooling controls | ON/OFF/LOCK |
System operating temperature range | 0°C to 40°C, non-condensing |
Data interval | USB 2.0 Type B connector (female) |
Software | ENLIGHTEN™ operating software & drivers are included |

WP NIR OEM Spectrometer
Our development-ready WP NIR OEM spectrometer delivers the same high sensitivity as our lab-friendly WP NIR I spectrometer in an even more compact, robust footprint, backed by comprehensive engineering support.
- SIZE: 18.3 x 7.5 x 4.8 cm, 600 g
- Industry-leading, high efficiency optics
- Patented VPH transmission gratings
- Diffraction-limited design for better SNR
- Excellent unit-to-unit reproducibility
- Robust, thermally stable optical bench
- Fiber coupled & free space models
- ENLIGHTEN™ spectroscopy software – included!
Product sheet (click to download):
Brochures (click to download):
- WP Spectroscopy Solutions > Overview of our spectrometers & accessories, design advantages, and applications
Tech notes (click to open):
- Why Wasatch for Spectroscopy? > See the data to validate our faster measurements, low LOD, high SNR, and excellent mechanical stability.
- The Wasatch Advantage > Explore the optical design of our spectrometers and their performance benefits.
- Why Wasatch for NIR> See the data to back up our superior sensitivity, LOD, speed, and thermal stability in the NIR.