Liftmaster 850LM Gate Receiver Package With 1 Remote ul-listed it activates gate systems when If your SL920 operator GL1-FL push-bar Select Model:Pump Motor Assembly with Enclosure - 115V

it activates gate systems when a vehicle compresses the connected air hose (sold separately)

Self-adjusting magnetic limits for easy setup and reliable operation

high-security solution designed to enhance access control systems or serve as a powerful stand-alone unit

continuous operation with a 100% duty cycle

down memory option

Liftmaster 850LM Gate Receiver Package With 1 Remote ul listed it activates gate systems when If your SL920 operator GL1 FL push bar Select Model:Pump Motor Assembly with Enclosure 115V it activates gate systems when a vehicle compresses the connected air hose (sold separately) Self adjusting magnetic limits for easy setup and reliable operation