Scubapro Mantis 2
The Scubapro Mantis 2 Dive Computer is available with a heart rate monitor and transmitter. The M2 has a reliable tiltable compass that you can use both on land and in the water. The M2 can be set on 4 different dive modes; Scuba, Gauge, Freediving and CCR (Closed Circuit Rebreather). Besides the dive modes you can set it on swim and sport mode.
The Mantis 2 scuba diving computer can be used to a depth of 120 metres and the dealer replaceable battery is rated for 2 years/300 dives.