Sportsman's economic twin-fuel generator is a favorite among homeowners and RVers on a tight budget. The simplicity of the generator appeals to them. It comes with an analog wattage meter, allowing you to keep track of your power usage. There are two 120-volt outlets and a 30-amp twist-lock outlet. This generator isn't capable of producing 240-volt power, but it's not a massive problem for the intended users. It's a reasonably portable and lightweight machine at just 90 pounds, which doesn't really need wheels to be moved around.