https://alexnld.com/product/gate-control-for-287-868-mhz-garage-door-remote-control-duplicator-433-92mhz-868-3mhz-gate-door-opener-for-fixed-rolling-code/?hilite="433Mhz Universal Wireless RF Remote Control Switch AC 220V 1CH 30A Relay Receiver for Electric Gate Garage Door"