The new A-iPower XOS5200iD has fuel-sense. This new technology works like this: attached a prpopane tank to the inverter, start it up and the unit will run on LP until the tank is empty then automatically starts to run on gasoline. What a great feature and you never have to worry about running out of fuel. The fuel technology is great and it also is quiet and lightweight with wheels.

The XOS5200iD is compact, versatile nature and has the ability to handle a variety of tasks. I use it almost every week and it's a workhorse. Recommended.