The Inteli-Lift and Econo- Lift are the only fully ETL certified dumbwaiters, based on UL standards, manufactured in the world today.Ê Elevation Innovation,Ê Inc. along with UL engineers ran extensive tests over a four-day period on the Inteli-Lift and Econo-Lift dumbwaiter systems.Ê Our systems are manufactured to meet or exceed the ASME A17.1 and A17.5…