Sierra Electric Air or Nitrogen Boost Pump
Available from American Airworks™
Sierra boosters are electrically powered and compress breathing air & inert gases to 5000 PSI from 1500 PSI or boost air to 2216 PSI from 800 PSI. The 12000 model will boost air to 6000 PSI. Sierra boosters are available in several models.
Models 9000 and 12000 are pre-set to automatically stop at 5000 or 6000 PSI respectively. They are manually re-started. These models can also be purchased with the ability to automatically restart, when the pump senses a drop in pressure.
The models 9000 A-2 and 12000 A-2 have a selectable stop pressure switch for either 2216 or 4500 and 4500 or 6000 PSI air fills.