Chamberlain Liftmaster BG 790 Barrier Gate Opener When an application calls for a barrier gate, LiftMaster's BG790 has the reliability and features you require for a commercial installation. The BG790 can be utilized in a high traffic area or integrated with another style gate to create a trap, preventing additional cars from entering a specified area prior to the previous car leaving. The BG790 is provided by LiftMaster® with a 24-foot wishbone-style arm. Whether the operator is used individually or when utilizing the standard master/slave feature, the BG790 will cover the majority of installations from 24 to 48 feet wide. For smaller entranceways, please see our BG770 Barrier Gate Operator that supports a 12-foot standard arm. LiftMaster's parking gates are designed for long life and durability. The weatherproof cabinet is composed of heavy-duty 11-gauge pre-galvanized steel and is baked with a powder coat finish. A continuous duty 1/3 hp industrial motor, with overload protection, is standard to withstand heavy usage and promote low maintenance.