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SM642N Ethernet interface Spectrometer

Low Noise Non-TE-Cooled Backthinned Ethernet Communication Spectrometer




  • Low Cost and High Performance Backthinned CCD Spectrometer
  • Low Dark Current Noise and Stray Light for Spectrophotometer / Spectroradiometer
  • High Signal to Noise Ratio (SNR)
  • High Ultra-Violet Quantum Efficiency
  • High Speed Data Acquisition
  • Optical Dark Option (Auto Shutter)
  • Communication over long distance
  • OnBoard averaging - average up to 65,535 spectra
  • OnBoard Memory(Volatile) 30,000 spectra
  • Interface - Ethernet, USB, RS232(Custom)
  • Digital Gain/Offset 1024 step



The Choice for Low Signal Level Applications

Spectral Products is offering the new SM642N Non-TE cooled back-thinned 2048-pixel array CCD spectrometer. The SM642N provides high quantum efficiency in UV and a high dynamic range. The detector used in the SM642N has 2048 pixels and helps to get a better resolution. It is ideal for UV/VIS/NIR spectrometry that requires a high signal-to-noise ratio and/or high dynamic range.

SM642N delivers acquisition communications via USB and  Ethernet. Our spectrometer can support multichannel configurations of up to 8. With this multichannel configuration, a high resolution for a wide range, or a dual spectrometer system (one for measurement and the other for reference) is possible. Especially, ethernet communication provides the ability to read the spectrum over long distances.

The SM642N stores 30,000 spectra with onboard memory. Spectrometer data acquisition is possible without data loss due to readout time. This function is expected to be utilized in various applications when time synchronization is important.

Software support includes SDKs and DLLs for developing dedicated applications and Windows OS-based spectrum acquisition and analysis software (SMProMX).

NOTE: Please click SM642N for the brochure file.


To contact us for more information, please click the "Contact Us" button to go to the Contact Us page. To request a quote or more details about this item, please click the "Email Inquiry" button to open an email to us. 


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Hamamatsu S10420-1106S (Non TE Cooled Backthinned FFT CCD)

Pixel: 2048 x 64 (Effective)
Pixel: 2068 x 70 (Total)
Sensing Pixel size: 14µm x 14µm
Full well capacity: 200 Ke-

Spectral Resolution

~ 0.25 - 7nm, dependent on the spectral range, slit width, and fiber core diameter

Spectral Range

200 - 1100nm

Fiber Coupler

SMA 905 or FC standard

Stray Light

< 0.05% avg

Dark Noise RMS

TYP < 7 counts @ min. integration time

Signal to Noise Ratio

450: 1

min. Integration Time

7 ms

Trigger mode

Free Run mode
Software Trigger mode
External Trigger mode (20-pin connector): TTL Edge trigger output

OnBoard Memory (Volatile)

30,000 spectra

OnBoard Averaging

up to 65,535 spectra


Windows 7, 8.1, 10 (32-bit/64-bit)
Visual C++ DLL, Labview VI SDK

Dimensions (inches)

5.98H x 3.94W x 2.61D inches



Data Transfer Rate (Normal mode)

Up to 250 spectra per second via Ethernet and USB2.0

Computer Interface

Ethernet, USB, RS232(custom)