We offer a wide array of spectrometers and accessories. As authorized distributors with extensive experience, we can put together custom packages at competitive pricing with full manufacturer’s warranties. A few of our most popular options are detailed below, however we offer a much more extensive array of equipment and solutions than it is possible to reflect on our website.

Get in touch and will will be happy to work with you to identify the complete system that best meets your needs! If you’d prefer to shop online, a few common systems are available on our web store, however by contacting us before ordering we will ensure that you receive the best pricing possible on your hardware.


Ocean Optics USB2000+ Modular Spectrometer

Flame, USB2000+, USB4000, HR2000+, HR4000

Our lowest cost option, the USB, HR and Flame spectrometers are tried and true workhorses, offering excellent value for applications with higher measurable signals, and are a good fit for cost sensitive applications where detection limit is not critical.

Ocean Optics Maya2000 Pro Modular Spectrometer

Maya2000 Pro

The Maya2000 Pro spectrometer offers excellent value, providing great performance for a variety of UV-VIS-NIR measurements, including Raman and SERS.

Ocean Optics QEPro Modular Spectrometer


The scientific grade QE Pro spectrometer is the most sensitive modular spectrometer we offer, and is our recommendation for performing highly sensitive measurements across the UV-Vis-NIR range, including Raman and SERS measurements.

Pricing: ~$3,000’s and up

Pricing: ~$6,000’s (configuration dependent)

Pricing: ~$13,000’s (configuration dependent)

USB2000+ Specifications

Dimensions: 89.1 mm x 63.3 mm x 34.4 mm
Weight: 190 g
Detector: Sony ILX511B (2048-element linear silicon CCD array)
Detector range: 200-1100 nm
Pixels: 2048 pixels
Pixel size: 14 µm x 200 µm
Pixel well depth: ~62,500 electrons
Optical resolution: ~0.1-10.0 nm FWHM (configuration dependent)
Signal-to-noise ratio: 250:1 (full signal)
A/D resolution: 16 bit
Dark noise: 50 RMS counts
Dynamic range: 8.5 x 10^7 (system); 1300:1 for a single acquisition
Integration time: 1 ms – 65 seconds
Stray light: <0.05% at 600 nm; <0.10% at 435 nm
Corrected linearity: >99%
Power consumption: 250 mA @ 5 VDC
Inputs/Outputs: Yes. Onboard digital user programmable GPIOS
Trigger modes: 4 modes
Stobe functions: Yes
Gated delay feature: Yes
Connector: 22-pin connector

Maya2000 Pro Specifications

Dimensions (mm): 182 x 110 x 47
Weight: 1.18 kg (2.6 lb.)


Type: Back-thinned, 2D
Detector: Hamamatsu S11510 (uncooled)
Quantum efficiency: ~85% peak QE @ 700 nm; 40% QE @ 1000 nm
Spectral range (preset): 780-1180 nm
Optical resolution (FWHM): ~0.82 nm
Signal-to-noise ratio at full signal: ~450:1
Dynamic range: 15000:1 (typical)
Integration time: 7.2 ms-5 seconds
Fiber optic connector: SMA 905 to 0.22 numerical aperture single-strand optical fiber
Power requirement: 500 mA @ +5 VDC
Trigger modes: 4 modes
Strobe functions: Yes
Interfaces: USB 2.0, RS-232
Temperature: 0 °C to +50 °C (operation)
Humidity: 0-90% non-condensing

QE Pro Specifications

Dimensions: (L x W x H) mm and inches 182 mm (7.17 in.) x 110 mm (4.33 in.) x 47 mm (1.85 in.)
Weight: kg and lb Spectrometer: 1.15 kg (2.6 lbs.); power supply: 0.45 kg (1 lb.)
Type: Hamamatsu scientific grade, back-thinned, TE Cooled, 1044 x 64 element CCD array
Range: 185-1100 nm
Quantum efficiency: 90% (peak)
Wavelength range: 780-1000 nm
Raman shift: 0-2800 cm-1
Rseolution: 7 – 11 cm-1 over the range*
Integration time: 8 ms to 60 minutes
Dynamic range: ~85,000:1
Signal-to-noise ratio: System: 1000:1 (single acquisition)
Stray light: <0.08% at 600 nm; 0.4% at 435 nm
Buffering: 15,000 spectra
Fiber optic connector: SMA 905 and Ocean Optics FC
Power requirement: Supply voltage: 4.5 – 5.5 V
Strobe functions: continuous and single strobe
Interfaces: USB 2.0, 480 Mbps (USB 1.1 compatible); RS-232 (5-wire)
Temperature: TE Cooler can only cool 40 °C below ambient temperature; Operation: -40 °C to +50 °C
Humidity: ≤ 90% noncondensing

Dark Noise Comparison

From a practical standpoint, one of the more noticeable differences between these spectrometers is their relative levels of dark noise. For high sensitivity measurements, the QE’s extremely low noise allows for very long integration times, and detection of signals which are only 10’s of counts per second. The Maya and USB/HR spectrometers are only usable for shorter integration times (seconds), but still offer reasonable performance for many higher signal applications.

Dark Noise Comparison Maya2000 vs QEPro vs USB2000+


Example Spectrum

A comparison of a BPE P-SERS™ measurement using the Maya2000 Pro and the QE65 Pro. A 1 second integration time was used.

Maya2000 Pro vs. QE65 Pro for BPE P-SERS Measurement


Diagnostic anSERS provides the highest quality wavelength stabilized lasers for your Raman applications. This particular model is thermoelectrically cooled for high wavelength stability. This unit has a digital readout for easy power adjustment, an independent master power key switch and laser enable switch, a remote interlock, and an Emergency Power Off (EMO) pushbutton, and is configured for 785 nm (other wavelengths available upon request).

785nm Spectrum Stabilized Laser


Dimensions: 115 mm x 175 mm x 245 mm (4.5 in x 6.8 in x 9.6 in)
Weight: 1.6 kg (3.4 lbs)
Excitation wavelength: 785 nm
Output power: Fully adjustable, up to 350 mW/ 500 mW
Fiber connector: SMA 905 or FC
Wavelength stability: <3% peak-to-peak in 8 hours
Spectral linewidth: < 0.15 nm (FWHM)



Our high efficiency Raman coupled fiber probes are available for 532, 632, 638 and 785 nm excitation, with SMA and/or FC connectors. All probes are anodized aluminum with a stainless steel tip and have a manual safety shutter.

These non-immersion probes are ideal for performing SERS measurements with our P-SERS™ substrates, as well as for performing general Raman measurements of solids and surfaces as well as measurements through containers.

785nm Raman Probe


Excitation wavelengths: 532 nm and 785 nm (standard)
Spectral range:* 300 – 3900 cm-1
Laser line blocking: OD 6
Sampling head: Anodized aluminum
Probe length: 107 mm
Probe diameter: 12.7 mm
Working distance: 7.5 mm (standard)
Fiber configuration: Excitation and collection fibers; 0.22 NA
Fiber length: 1.5 m
Fiber connectors: FC (standard) and SMA 905
Built-in safety shutter: Yes

Laser + Probe Combo

Due to its unique design, this new laser + probe combo offers up to 3X higher throughout as compared to a standard Raman probe, and is a cost effective alternative to purchasing a separate laser and probe. Contact us today for a more information or a quote!





Data Sheet Download


We can provide a variety of accessories to meet your Raman and SERS needs, including:

  • Cuvette holders
  • In-line filter holders for fibers
  • Optical Bench with Micropositioners for Raman and SERS analysis

Optical Bench with Micropositioners for Raman and SERS measurements

Why Diagnostic anSERS?

  • With close ties to a variety of manufacturers, we put together cost effective systems that meet our customer’s needs without sacrificing quality or performance.
  • We’re there to support you, before and after the sale.
  • Our scientists can provide technical assistance and consulting.
  • All of our products carry full manufacturer’s warranties.
  • We offer very competitive pricing on all of the products we carry (prices on our web store do not reflect applicable discounts).
  • Spectrometer orders receive free shipping.

Quotation & Information Requests

Please fill out the form below, or call / e-mail us directly, and we will get back to you shortly.