Scubapro M2 Wrist Dive ComputerScubapro M2 Wrist Dive Computer Offering everything a recreational diver wants, and everything a technical diver needs, the M2 (MANTIS 2)is a wristwatch style dive computer like no other. The M2 is loaded with topside features and underwater functions, including hoseless air integration and electronic navigation, plus it incorporates cutting edge biometrics through Human Factor Diving that enable you to live your life in dive mode. Human Factor Diving