Guardian Series generator provides the automatic backup power needed to protect your home and family during a power outage. Connected to existing LP (liquid propane) or natural gas fuel supply, it kicks in within seconds of sensing power loss automatically, and runs for as long as necessary until utility power returns. Features True Power electrical technology, and two-line multilingual digital LCD Evolution controller. Two transfer switch options available: 100-amp, 16-circuit switch or 200-amp service rate smart switch. Includes an electronic governor, standard Wi-Fi connectivity, and system status & maintenance internal LED (light emitting diode) indicators. Sound attenuated enclosure and flexible fuel line connector. Natural gas or LP gas operation. 5-year limited warranty.