Cressi’s Giotto is an air-nitrox wrist-mount dive computer with a<br />new RGBM algorithm. Able to program two gas mixes up to 99<br />percent nitrox, the Giotto’s screen displays data in easy to<br />understand sections. A screen prompt lets you know what mode<br />you’re in so you can’t get lost. The Giotto is powered by a user<br />replaceable battery and comes with an extra -long wrist strap.