Transfer Switch: An electrical switch that switches a load between two sources; some transfer switches are manual (operator effects transfer by throwing switch) while others are automatic and trigger when they sense one of the sources has lost or gained power.
Ground Fault Circuit Interrupter (GFCI): A safety device on electrical outlets to shut off electricity if the outlet becomes ungrounded, which would create an unsafe condition and could produce an electrical shock.
Carbon Monoxide (CO): A poisonous gas that is formed when carbon is not burned completely, especially when gasoline is burned in engines, e.g., automobiles and generators.
