Features: Buhlmann deco models ZH-L16A, ZH-L16B* or ZH-L16C* with Erik baker's Gradient Factors VPM/B and VPM/B-GFS* deco models Metric and Imperial units Open circuit and CCR Rebreather closed circuit Air, Nitrox, Trimix, Heliox, Helitrox, Heliair dives Altitude dives Multilevel dives Repetitive dives with interval gas breathing gas and tissues off-gassing charts* Per-dive customizable parameters Bailout profiles* Contingency backup profiles* ( time / depth violations ) Step by step gas consumption traking and tanks volumes edit CNS and OTU's tracking Dive charts with interactive tissues load chart Save dive projects Screenshot, Copy to clipboard, or send by email RunTimes Customizable last stop depth ( 3~9 meters or 10~feet ) Deep stops and Pyle Stops * Customizable SAC rate ( at ascent, descent, deco stops, CCR ) Customizables ascent / descent speeds Customizables tank switch time* ( OC, CCR to OC, leaving Trimix ) Customizables deco steps* Customizables setpoints depending of depth Possibility to download Shearwater Predator, Petrel, Petrel2 dive Profiles ( with separate app Shearwater Downloader ) Max Depth: 70m/230f - Pro version: 500m/1640f