The Ocean HR4 is engineered for high-resolution spectroscopy, offering exceptional thermal stability and low stray light performance. With an optical resolution of <0.1 nm (FWHM) and a dynamic range up to 12,000:1 in a single scan, the HR4 delivers precise, reproducible spectral measurements across a variety of demanding applications.

The HR4 covers a wavelength range of ~190–1100 nm (depending on configuration) and supports integration times from 3.8 ms to 10 s, accommodating both rapid acquisitions and longer measurements. It achieves an SNR up to 3,000:1 per second with High-Speed Averaging Mode, while its thermal stability (0.02 nm/°C) minimizes wavelength drift under varying ambient conditions. These features make it a strong performer in high-resolution, high-sensitivity workflows.

Designed for compact integration and ease of use, the HR4 connects via a USB Type-C interface for flexible system integration and supports multiple trigger modes for synchronized spectral acquisition. Full compatibility with the OceanDirect™ SDK provides a cross-platform development environment with an API for advanced control, automation, and data analysis, enabling smooth integration into laboratory setups and OEM systems.

The HR4 is ideally suited for applications such as plasma monitoring, DNA/RNA analysis, and other high-resolution spectral measurements requiring both stability and low stray light. Its combination of sub-nanometer resolution, excellent reproducibility, and compact design makes it a versatile tool for both research and industrial environments.