Ocean Optics USB4000 Optical Spectrometer 573-889 nm tested and working #2.

Ocean Optics spectrometer USB4000 motherboard w/ sensor

Ocean Optics USB4000 USB Mini Fiber-Optic Spectrometer 1

CHEMUSB4-VIS/NIR Ocean Optics USB4000 USB Spectrometer

Lot of 2 Ocean Optics USB4000 Spectrometers with lamp and cuvette holder, tested

Ocean Optics LED-PS Light Source with Power Supply - Used

Ocean Optics USB Spectrometer

Ocean Optics #2 Grating for USB-2000 USB-2000+ USB-4000 Spectrometer