The AvaSpec-ULS2048CL-EVO from Avantes is a Fiber-Optic Spectrometer that operates at a wavelength of 200 nm - 1100 nm. It has an Ultra-low stray light (ULS) Symmetrical Czerny-Turner optical bench with a focal length of 75 mm and a resolution of 0.06 nm - 20 nm. This spectrometer has a stray light of 0.19 - 1% (depending on the grating) and sensitivity of 375,000 counts/µW per ms integration time. It has a 2048-pixel CMOS detector with a 16-bit A/D converter.

The AvaSpec-ULS2048CL-EVO has an integration time of 30 µs - 59 s and a signal-to-noise ratio of 300:1. It has a dynamic range of 4000 and can be controlled via USB 3.0 & ethernet interfaces with a data rate of 1 Gbps - 5 Gbps. This spectrometer has a data transfer speed of 0.38 ms/scan (USB 3.0) and 1 ms (ethernet). It requires a DC supply voltage of 12 V and consumes 300 mA of current. This spectrometer is available in a module that measures 177 mm x 127 mm x 44.5 mm.