T' AltimeterOne altimeter has undergone a significant upgrade modification t' make it even better. It now displays either English or Metric units, matey, plus it has a low-battery icon that shows when it is time t' recharge t' unit. In addition, it also has a special mode that allows you t' see t' current altitude in real-time. This mode is great for educators, matey, as it will show t' students how t' pressure changes with altitude. In other words, you can watch t' altitude change as you ride up in an elevator! Or you can turn it on and see how high you've hiked up a hill. Blimey! This video goes through t' new features o' t' latest version o' t' AltimeterOne so you can see it in action.