Compass, 2 Gas Switch, Depth 150m, Time. Digital compass functions on land or underwater. Suunto Deep Stop RGBM provides iterative deep stops as an alternative to traditional safety stops. Maximum depth display to 150m. Optional PC Interface allows user to download logs. Logbook and stopwatch. Includes display shield. Time and daily alarms. Material: Stainless Steel / Elastomer (Also Model: Suunto SS011974300)