Quick view BLACK-Comet-SR Concave Grating Spectrometers $3,950.00 StellarNet BLACK-Comet-SR concave grating spectrometers deliver high performance spectral analysis in the UV-VIS-NIR wavelength range covering 200-1080nm (model C-SR) or optionally 220-1100nm (model CXR-SR). Research Grade Optical... Qty in Cart: 0 Price: $3,950.00 Subtotal: Options