The Suunto SK-7 End Mount Compass is compatible with the Cobra, Vyper, Gekko, and Zoop Dive Consoles. The SK7 features an extraordinary tilt potential of +/- 30 degrees, which is 2-3 times greater than in conventional diving compasses.  The Suunto SK7 has a large side-reading window and easy-to-read numerals on a phosphorescent compass card. The bezel has a ratchet at every fifth degree, so it is designed to prevent sand and dirt contamination which makes for smooth turning.