The Mares Sirius L is a wrist dive computer in a lighter case than the standard Sirius, covering nitrox from 21% to 99% with gas switching during the dive. Maximum displayed depth is 100 m / 328 ft, with an ascent rate indicator reading in metres or feet per minute.
Memory holds over 200 hours of dive profile at a 5-second sampling rate. Watch functions include time, stopwatch, and a daily alarm, and plan mode allows dives to be worked out before entry. Units, water type, altitude adjustment, and residual nitrogen reset are all user configurable, and the CR2450 battery is user replaceable with roughly 200 to 300 hours of diving per cell.
