Comprehensive Compatibility List: This remote is suitable for Liftronic 500/700/800 and for Portronic D2500/D5000/S4000 garage door operators. It seamlessly replaces your lost or damaged remotes with identical functionality. Replacement Remote Control: Specifically designed for and garage door models, this remote operates at a frequency of 433.92MHz. It is compatible with for RSE2-433, RSC2-433, RSZ1-433, and several other models, ensuring wide-ranging use. Exclusion Details: Please note that this remote is not compatible with BS Series (RSC4-433-BS, RSZ1-433-BS) and Liftronic 700 Series 2, Liftronic 800 Series 2. your model is compatible before purchase to avoid any inconvenience., Manufacturer: Akfldms