Mountain High Oxygen has announced their new EDS (Electronic Delivery System) Pulse Demand oxygen controllers, the O2D1-2G and O2D2-2G. These Pulse Demand systems still incorporate all of the benefits of their legacy controllers, but with many improvements. The EDS unit now incorporates a MIL spec ruggedized easy-to-grip rotary control switch providing improved reliability, increased ease of function and visibility. This switch also has very positive position detents for excellent tactile feedback making it resistant to changes from causal rubbing or bumping. Manifold design was also improved to allow for better breathing response and effort tracking. Other improvements include a dedicated bi-color system battery status light allowing much easier monitoring and definitive indication of battery condition without being confused as a station operation. To learn even more improvements to their oxygen controllers, please visit the Mountain High website at www.mhoxygen.com.