PROBLEM SOLVING - If after you use this remote for a while, and the remote controls LED does not light up when the battery button is pressed, please replace the batteries and reprogram the remote control. And sometimes the low battery in this remote will also cause the gate can not receive the signal.REPLACEMENT FOR Stanley: 1038, 1040, 1044, 1047, 1049, 1050, 1076, 1079, 1082, 1100, 24911, 51-4271, 51-4272, 51-4273, 51-4369, 51-4726, 105015, 308302, 108210, 109410, 109710, 308913, 1050-T, Digi-Code 5012, 5062, 5032, 5042, 5072, Heddolf S219, S220 remote control10 DIP-SWITCHES 310MHz - This remote operate on 310mhz frequency, features 10 dip-switches. Other frequency and dip switch will not workCOMPATIBILITY - This Garage Door Remote only compatible with Stanley, Digi-Code, Heddolf garage receivers features 10 dip switch, 310MHZ frequencyLATEST RF TECHNOLOGY & STRONG SECURITY ENCRYPTED DESIGN - Ensure better range + 310MHz frequency + Rolling code technology to protect your homes access and connection