Premium Carbon Dioxide (CO₂) Spectrum Tube, 26cm

This premium spectrum tube contains research-grade carbon dioxide (CO2) gas and measures 26cm (10.24") long. It features a large 10cm capillary in the center for a greater viewing area, producing bright-line spectral lines with high clarity when examined through a student-grade spectrometer with a 200 line/mm diffraction grating. The tube is designed for operation intervals of 30 seconds on and 30 seconds off. This cycling extends tube life and prevents overheating. A spectrum tube power supply (not included) is required for operation. For intermittent use only; not to be used as a lamp source.