The gas tubes are permanently enclosed in plastic carriers that protect the tubes from breakage. There are no through-the-glass electrodes, so the tubes last far longer than older designs. The Power Supply will energize one tube at a time, and includes storage space for an additional six tubes.
A Spectrum Tube Fiber Optic Holder is included to hold an optical fiber cable in position.
Each spectrum tube is sold separately.
WARNING: This product can expose you to chemicals, including nickel, which are known to the State of California to cause cancer. For more information, see www.P65Warnings.ca.gov