■ Main functions and equipment Full continuous decompression algorithm (Suunto RGBM) 4 modes : Air, Nitrox, free, gauge appnaire timer ■ Size: 2.4 x 2.4 x 1.0 inches (60.6 x 60.6 x 27.2 mm) Weight: 2.6 oz (68 g) (680 m) oz (680 g) (680 g) (680 mm) m) oz (6888888 mm) oz (6880 mm) mm) Auto-dive mode Nitrox Nitrox Free-diving mode Gauge Mode, Dive Time: 0 - 999 minutes, Water Surface Time: 0 - 99 hours, 59 minutes, Flight Prohibition Time, Safety Stop, Deep Stop, Floating Time Display: 0 - 199 minutes, CNS/OTU (OLF) Calculation, Decompression Model: SUUNT RGBM, Altitude Adjustment: 0 - 300 - 1500 m/15000000 m ~3000 m Gas: 1 type of gas (oxygen: 21 - 50%), gas max pO 2: 0.2 - 3.0, stopwatch, non-decompression planner, log memory: up to 140 hours (20 seconds sampling rate) / log bookmark / sampling rate: 10, 20, 30, 60 seconds (1, 2, 2, 5 seconds, free diving). Free Diving A Punea timer (O2/CO2 table) Free dive times Free dive days history Depth notification: Yes Water surface time notifications ■ Accessories: Protector, instruction manual ■ Battery life ·About 3 years (when not in use) at room temperature 20 degrees F (24 months.