Leonardo Computer

One button, three modes, and a battery you change at your kitchen table. The Cressi Leonardo is the dive computer we sell more of than any other, because it does what a first computer should and nothing you will never use.

Why divers in Qatar choose the Cressi Leonardo

An elegant expression of simple, functional design, the Leonardo is a must-have for divers entering the sport and for those who just want to dive.

The single-button interface means you can set air, nitrox and gauge modes from the outset without working through menus. There is no sequence to memorise and nothing to fumble with cold hands or thick gloves.

Despite the compact size it carries a large, high-definition display with large digital characters, which is what makes it legible at depth and in Qatar's green inshore water.

Technical features

• Air, Nitrox and Gauge modes, set through a single-button interface
• FO2 adjustable between 21% and 50%
• PO2 adjustable between 1.2 bar and 1.6 bar
• Cressi RGBM algorithm, developed with Bruce Wienke, based on the Haldane model integrated with RGBM factors
• Nine tissue compartments with saturation half-times from 2.5 to 480 minutes
• Maximum operating depth 99m
• CNS oxygen toxicity graphic indicator
• Audible and visual alarms
• Large high-definition display with large digital characters, backlit
• Built-in calendar and clock
• Battery life indicator
• CR2430 3V battery, around two years of average life at 50 dives a year, replaceable by the user
• Full instrument reset, which makes it an excellent choice for rental departments
• Optional PC and Mac interface with simulator and dive profile

Buying the Cressi Leonardo from us

We are an official Cressi dealer in Qatar, so your Leonardo comes with proper manufacturer warranty rather than grey-market cover.

We stock the CR2430 battery kits and the straps, which means a flat battery is a walk-in job and never a reason to miss a dive weekend.

Delivery covers all of Qatar, and we will set the unit up and walk you through the modes before your first dive if you want.

If you expect to switch between two gas mixes underwater, look at the Cressi computer range for a multi-gas model instead. Otherwise this is the sensible buy.

Compare it against all dive computers, or see computer spare parts and gauges and compasses.

Full specifications are published by Cressi.