Spectrum Tubes, Water Vapour, Each

Details

This high-quality Spectrum Tube effectively demonstrates the spectral lines of pure water vapor when placed in a compatible spectrum tube power supply (not included). It is designed for use with power supplies capable of holding 26cm spectrum tubes, such as the Eisco p/n ESRPH1197B model. The 26cm long tube is made of durable, transparent soda glass and features a large 10cm capillary in the center, providing a greater viewing area. For best performance and longest life, the spectrum tube should be operated in 30-second on/30-second off time intervals. This product includes instructions. NOTE: This spectrum tube is intended for intermittent use only and should not be used as a lamp source. The expected life of spectrum tubes will vary depending on the gas they contain. If used as recommended and not allowed to overheat, the useful life - or time it takes to detect contamination with usual measuring equipment - is very long.