The HR-03 from GratingWorks Co., Ltd is a Fiber-Optic Spectrometer that has a spectral range of 184 nm - 410 nm. It has entrance slit widths of 10 μm, 25 μm, 50 μm & 100 μm and FWHM of 0.2 nm (25 μm slit) & 0.36 nm (50 μm slit). This spectrometer uses Toshiba TCD1304 & Hamamatsu S11155/6 CCD detector with a resolution of 3648 pixels & 2048 pixels respectively and has a stray light below 0.05%. It has a pixel size of 8 μm x 200 μm (3648 pixels) & 14 μm x 500/1000 μm (2048 pixels) and full well depth of 86 K photon (3648 pixels) & 200 Ke- (2048 pixels).

The HR-03 has a signal-to-noise ratio of 420 (no avg) & 2073 (avg 10) for 3648 pixels and 730 (no avg) & 3400 (avg 10) for 2048 pixels. It has a readout noise of up to 30 rms (no avg) & 6.5 rms (avg 10) for 3648 pixels and 4 rms (no avg) & 1.5 rms (avg 10) for 2048 pixels. This spectrometer has a dynamic range above 2000 (no avg) & 10000 (avg 10) for 3648 pixels and 16000 (no avg) & 43000 (avg 10) for 2048 pixels. It has a linearity of 99.97% (before correction) & 99.98% (after correction) for 3648 pixels and 99.97% (before correction) & 99.99% (after correction) for 2048 pixels.

The HR-03 has an integration time of 10 μs - 65 s (for 3648 pixels) & 2 μs - 65 s (for 2048 pixels) and a thermal spectrum drift of less than 0.5 pixels. It has a 16-bit ADC and 6 GPIOs. This spectrometer has patented Xiang's Optical Configuration and passive athermal opto-mechanical design. It can be controlled via USB 2.0 & RS232 interfaces and supports SMA905 optical fiber connector. This spectrometer requires a DC supply voltage of 5 V and consumes 140 mA (for 3648 pixels) & 250 mA (for 2048 pixels) of current. It is available in a package that measures 147.5 mm x 88.5 mm x 61.5 mm.