Wireless air integration, Suunto D9 allows you to monitor tank pressure and air ... Suunto D9 has three dive modes. The Air mode is used for diving with ... Barometer Altimeter Watch.
www.heartratewatchcompany.com Knowing the weather and how much you have ascended or descended can be valuable information for mountaineers and rock climbers. Combine this with heart rate data, calories burned and a compass can be invaluable for planning and executing big climbs with less risk.