Compatible with LIFTRONIC 500/700/800 Garage Door Opener and Portronic D2500/D5000/S4000 Swing Gate Opener. Not compatible with Ecostar BS series, such as "RSC4-433-BS" "RSZ1-433-BS". Not compatible with Liftronic 2 series liftronic 500-2/700-2/800-2.
eBay