Aqua Lung Suunto SK-8 Compass SK8 Scuba Diving Compass and Depth Gauge Delivers even better underwater performance, faster stabilization and enhanced readability Tilt potential of +/- 30 degree degrees, tilt is 2 to 3 times better than conventional compasses Phosphorescent compass card for easy-reading in low light conditions Large side-reading window, gun-sight accurate navigation, Northern hemisphere zone 1/nh compass Designed for excellent navigation, 360 degree Ratchet bezel, liquid filled compass, lubber line