LiftMaster 375LM Universal Two-Button Gate and or Garage Door Opener Remote Control.
Same as the Chamberlain Clicker KLIK1U remote except in black and Sears Craftsman part number 139.53710 (also know as Sears part number 00953710000).
Operates up to two garage doors/gates, even if they are different brands or on different frequencies. This remote can replace the discontinued Clicker CLT1 or the CLT1D remotes.
See compatibility list for a full list of the models and versions that the LiftMaster 375LM remote control is compatible with.

ACT-21A Linear MegaCode mini one button keychain style gate or garage door opener remote control transmitter part number ACP00607

ACT-22A Linear MegaCode mini two button three channel keychain style gate or garage door opener remote control transmitter part number ACP00606A

MCT-1 Linear MegaCode standard one button one channel visor style gate or garage door opener remote control transmitter part number DNT00083

MCT-11 Linear MegaCode compact one button one channel visor style gate or garage door opener remote control transmitter part number DNT00090

MCT-2 Linear MegaCode standard two button three channel visor style gate or garage door opener remote control transmitter part number DNT00084

MCT-3 Linear MegaCode compact three button three channel visor style gate or garage door opener remote control transmitter part number DNT00089

MDT-1A Linear MegaCode one main front button with second top button one channel visor style gate or garage door opener remote control transmitter part number DNT00052A

MDT-2A Linear MegaCode two main front buttons with third top button three channel visor style gate or garage door opener remote control transmitter part number DNT00053A

MDT-4A Linear MegaCode four main front buttons with fifth top button five channel visor style gate or garage door opener remote control transmitter part number DNT00054A