Pulsed Technologies proudly presents the new plasma systems capable of running frequencies over 300,000 Hz (and up to 500,000 Hz*** - read the notes), PURE PLASMA, and, unlike other manufacturers, there is NO RF (Radio Frequency), NO modulation and NO carrier waves used to achieve the higher frequencies that may cause harmful interference. Years and years of research & development have gotten us to develop these new systems and make them available to you at affordable prices. The new high efficiency plasma generation system runs cool so the unit runs quiet for long periods of times without being bothered by the noisy fans. The proprietary tube mixture, Neon, Argon, Krypton and Xenon offers the best spectrum emission as possible that you can benefit from a plasma tube. These four noble gases complete each other and mixed in a manner that maximum output is achieved. Warranty: 5 Years parts and labour; free 90 days shipping