| Enhanced Radio Technology (ERT), replaces all 315 MHz frequency transmitters and receivers |
| Compatible with LiftMaster Garage Door Openers with purple learn button |
| With every push of the button, you get a brand-new code, one of over 100-billion codes, never to be repeated |
| Over 100 billion possible codes using ERT remotes |
| Accepts many remote controls and keypads |
| Built-in transformer - receiver plugs right into an outlet |
| Compatible model number 635-315LM |