INTUITIVE - One-button functionality simplifies operation. ACCESSIBLE - Large display and sleek design makes referrencing your guage easier than ever. VERSATILE - Upgradable firmware and multigas capability keeps this gauge relavant no matter how much time has passed. REAL WORLD APPLICATION - Residual nitrogen gauge and watch make this wrist top diving gauge versatile to use in sea or land. DEPTH - 150M (492 ft) Mares Puck Pro Wrist Top Dive Computer was introduced on the market in 2008 and sent a shockwave rippling through the industry with a super intuitive, easy to use, full-features RGBM nitrox computer at an extremely competitive price. INTUITIVE - One-button functionality simplifies operation. ACCESSIBLE - Large display and sleek design makes referrencing your guage easier than ever. VERSATILE - Upgradable firmware and multigas capability keeps this gauge relavant no matter how much time has passed.