This is a used Mares Puck 4 dive computer, a compact wrist unit running the Bühlmann ZH-L16C algorithm with customizable gradient factors. Nitrox is supported from 21% to 99% with gas switching during the dive, and the segment display sits behind a mineral glass lens.
Memory holds up to 100 hours of dive profile at a 5-second sampling rate, and units can be set to metric or imperial with fresh or salt water selection. The CR2450 battery is user replaceable, giving roughly 100 hours of dive time per cell.
As a used item, this computer shows cosmetic wear consistent with prior diving. Please review the listing photos for the condition of this specific unit.
