Isolated Ground - provides pure ground path for use in isolated grounding systems. Isolated ground devices have a grounding terminal that is electronically isolated from the strap to eliminate electrical interference (noise) in grounding networks that can cause problems in modern electronics. Hospital Grade - hospital grade devices are top of the line in their category, designed for high-abuse healthcare, industrial and commercial applications. Provides hard-wired point-of-use surge protection for electronic equipment in industrial, commercial and residential applications.Other products from Rakuten.com