ALEKO AC2000NOR Chain Driven Sliding Gate Opener up to 2000 Pounds AC2000 Chain driven sliding gate can be used to open gates up to 2000 pounds of 60 feet in length User programmable and user erasable remote codes; supports up to 6 remotes on its own, or more with the use of an external receiver that is sold separately Aluminum alloy chassis is corrosion resistant while still being light enough for 1 person to carry For your safety, this model will stop and reverse if encounters an obstruction on closing or opening Includes (1) AC 110V motor, 20 feet of chain, and (2) remotes and all needed installation hardware