Puck Air 2

Bühlmann ZH-L16C algorithm with customizable gradient factors
Alternate gradient factors and ceil-con decompression
Air, nitrox, trimix, bottom timer
8-color, high-resolution MIP display with jumbo-sized information
Full-tilt digital compass with bearing memory and a stopwatch
Hoseless tank data integration for up to five transmitters
Color-coded tank pressure and saturation level for at-a-glance readability
Bottom timer mode with resettable average depth and stopwatch
Decompression dive planner with additional surface interval function
Logbook capacity: 100 hours of dive profile at a 5-second sampling rate
Smart battery management system with 20 hours dive time per full charge (30 hours without transmitter)
Charging via clip and USB cable, 500 charging cycles
Integrated Bluetooth for direct connection to a smart device
Dive profile and tissue saturation graph accessible during the dive
Underwater menu allows certain settings to be changed during the dive
TTR - Time To Reserve - time that a diver can spend at the current depth before reaching the tank reserve
Runaway deco alarm
Four buttons for intuitive user interface plus quick commands
Altitude automatically adapted by sensing the ambient pressure every 20 seconds, even when turned off
Firmware update via the Mares app