* Robust Glass Fiber Reinforced Plastics housing
* Pedal available in plastic and aluminum die cast metal
* Choice of different type of contact blocks
* Galvanically separated contacts(for FS81-SP only)
* Positive Opening of NC contacts(for FS81-SP only)
* UL/cUL approved (E216958)
* IEC60601 certification issued by TUV for medical applications