Excellent replacement radio receiver and remote for the Marantec Mac-Lift Deluxe 2005 and Mac-Lift Elite 2007 garage door opener models. These particular models used to use a 40MHz frequency radio receiver and remote. Replacement receivers and remotes in the 40MHz frequency are no longer available (and "universal" remotes won't work). So what do you do? You can update your old Mac-Lift opener with a new 75424 Plug-in radio receiver and remote that works on 315MHz frequency. CompatibilityThe Plug-in Radio Receiver set also works with other models and brands that have older/outdated garage door operator remotes that no longer work or are no longer available. Simply connect the two wires from the Receiver to the wall control terminals, plug in the receiver and program the remote to the new receiver. Add additional remotes for other cars or just for spares. Will work on all Marantec or other standard garage door operators. The 75424 Radio Receiver is compatible with the Marantec 382 2-Button Digital Remote, 384 4-Button Digital Remote, 392 Keychain Digital Remote, M13-631 Wireless Keypad and Marantec Wireless Wall Control Station. The receiver is also compatible with the obsolete remotes M3-2312, M3-2314, M3-3313 and M3-631 keypad.This radio receiver set works well to replace the older obsolete 40MHz or 390MHz Marantec radio equipment on the Mac-Lift garage door operators.Features Marantec Plug-In Radio Receiver Set Part no.: 75424 One (1) Plug-In Radio Receiver 315MHz frequency included One (1) 382 Digital 2-Button Remote Control included One (1) 3-prong programming connector & visor clip included Bell Wire (to connector receiver to operator) included Upgrades an older Marantec opener or other brand to make them Homelink compatible with your vehicle Installation and programming instructions included Genuine Marantec Components:Marantec provides support exclusively for components manufactured by Marantec. We do not offer support or warranties for parts from other brands or imitations of Marantec products.