The HR4 series are high-resolution spectrometers with rapid acquisition, low stray light and great thermal stability for applications from plasma monitoring to DNA/RNA analysis. HR4 is compact and robust, with enhanced electronics and excellent thermal wavelength stability to ensure reliable performance in demanding environments. The HR4 spectrometer is compatible with SMA 905-terminated light sources and accessories, allowing users to optimize setups for different applications. With its high-resolution performance and thermal stability, HR4 allows users to monitor smaller spectral differences within sample response.
Each HR4 spectrometer comes with OceanDirect, a powerful, cross-platform Software Developers Kit with an Application Programming Interface. OceanDirect provides users with the ability to optimize spectrometer performance, access critical data for analysis, and enable High Speed Averaging Mode, which dramatically improves spectrometer SNR performance.

• High resolution performance: <1.0 nm (FWHM) with 25 µm slit (depending on configuration).
• Excellent thermal stability: ensures reliable performance in demanding environments.
• High Speed Averaging Mode: hardware-accelerated signal averaging function that dramatically boosts signal to noise ratio.
• Configurability: multiple grating and slit options provide flexibility within range from ~190-1100 nm