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Description
Improved safety for viewing gas spectra in your classroom. Break-resistant, polymer-encased Safe Spectrum Tubes offer extended life because they have hard polymer shells and no internal electrodes. Tubes run continuously for hours, allowing more time to view and analyze spectra. Each tube measures 15.5 x 4.0 x 3.0 cm.
Improved safety for viewing gas spectra in your classroom. Break-resistant, polymer-encased Safe Spectrum Tubes offer extended life because they have hard polymer shells and no internal electrodes. Tubes run continuously for hours, allowing more time to view and analyze spectra. Each tube measures 15.5 x 4.0 x 3.0 cm. Requires Safe Spectrum System Single-Tube Power Supply (item #755500) or Safe Spectrum System 8-Tube Carousel Power Supply (item #755502). Up to 100 hr burn time except for the Hydrogen Safe Spectrum Tube (item #755568), which features up to 40 hr burn time.
Note: Tubes that have not been operated for an extended period may not strike a discharge immediately after turning on the power supply. It can take up to 3 min for the discharge to strike for the first time. This is normal.