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SR-4VN500-25 Spectrometer (OceanDirect Software included)

Part Number: SR-4VN500-25

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Product Details

The SR4 is a high performance spectrometer with high-speed spectral acquisition and excellent signal-to-noise ratio (SNR) performance for diverse applications across the UV-visible-shortwave NIR range. This multipurpose spectrometer is anchored by a 3648-element CCD-array detector and robust electronics to deliver measurement capabilities on the line or in the lab. Strong thermal wavelength stability and low stray light performance ensure reliable, reproducible results, even in challenging industrial environments.

Each SR4 spectrometer comes with OceanDirect, a powerful, cross-platform Software Developers Kit (SDK) with an Application Programming Interface (API). OceanDirect provides users the capability to optimize spectrometer performance and access critical data for analysis.

SR4 is highly configurable, with models covering different wavelength ranges from approximately 190-1100 nm and entrance slit options in widths of 5 µm to 200 µm. The SR4 spectrometer is compact, versatile and compatible with Ocean Insight light sources and accessories. SR4 demonstrates effective results for applications from measuring distinct spectral peaks within plasmas and emission sources to detecting subtle changes in absorbance in DNA, proteins and other biological samples.

Product Overview

  • Optimized performance with high speed acquisition and great SNR
  • Ideal for integration into OEM and industrial applications
  • Triggering mode options and High Speed Averaging Mode hardware-accelerated signal averaging tool
  • Available in 5, 10, 25, 50, 100 or 200 µm wide slits

Each SR4 also includes OceanDirect, a powerful, cross-platform Software Developers Kit. 


Select model to see full specifications


Wavelength Range:
350nm - 1.04μm
Blaze Wavelength:
500 nm
Optical Resolution:
1.2 nm
Integration Time:
3.8ms - 10s
Corrected linearity:
Input Fiber Connector:
SMA 905
Signal to Noise Ratio:
Stray light:
2.3 AU
Thermal Stability:
<0.05 pixels/° C


Entrance slit:
25 µm


A/D Resolution:
16 bit


Operating Temperature:
0 °C-55 °C
Storage Temperature:
-30° to 70° C


88.1 x 63.5 x 31.45 mm
254 g