Buy Liftmaster 371LM Visor Size 315mhz Garage Door OpenerCompatible Device Type: Liftmaster 371lm 1 button garage door openerThis 1 button remote is for NEW 2005 garage door openers by Liftmaster. Programmable by using the PURPLE LED light on the back of liftmaster garage door openers from 2005 and later 315 MHZ Frequency, over 100 billion codes with code rotating technology Offers Enhanced Radio Technology (ERT) 1 channel/button transmitter, compatible with models manufactured from 2005 and later Open/close one garage door opener Turn garage door opener lights on/off Visor clip or key ring included Lithium battery (5 years life w/normal use) included The military radio equipment, also known as Land Mobile Radio (LMR) operates at 390MHz, which is in the same frequency band as Chamberlain, Liftmaster, Sears Craftsman, and Genie garage door openers. Homeowners near these military bases may experience interference to their garage door openers that can cause the garage door opener to malfunction. In order to solve such interference problems as mentioned in the FCC Public Notice, homeowners can purchase a new liftmaster garage door operator OR a Conversion kit (includes a transmitter and a receiver) that operates on a different frequency that is not used by the LMR. If you need a conversion kit liftmaster offers one now called the Liftmaster 355LM Conversion Kit The Liftmaster 355LM Conversion KitWorks for: Liftmaster 312HM receiver 315mhz Liftmaster 355LM Garage Door Opener Receiver 315MHz Liftmaster 355LM Garage Door Receiver 315MHz Conversion Kit Liftmaster 370LM Keychain garage door opener 315mhz Liftmaster 372LM garage door opener 315mhz Liftmaster 373LM garage door opener 315mhz Liftmaster 374LM garage door opener 315mhz Liftmaster 3800 DC Motor Residential Jackshaft Opener Liftmaster Garage Door Opener 3110 Liftmaster Garage Door Opener 3220 Liftmaster Garage Door Opener 3245works with: 139.53753 371LM Visor Size 315mhz, 139.53753, 139.53757, 139.53910D-315, 139.53914D, 139.53918D, 139.53920DM, 139.53930DM, 139.53985D, 139.53992DBattery Required: CR2032 (sold separately)