This Mighty Mule FM135 / GTO RB741 compatible visor garage door opener from Transmitter Solutions can replace any GTO/Mighty Mule 318 MHz remote control with 9 ( /0/-) dip switches. Programming is simple just match the 9 switches inside of this visor garage door remote to your existing remote control or actual door opener and your ready to go. Compatible with the following remotes: GTO RB741, RB742, RB743, RB744 Mighty Mule FM135, FM136, and FM137 Product Details 318 MHz frequency gate or garage door remote transmitter Controls one garage door or gate opener Includes visor clip, 12 volt battery, and programming instructions. Built-in LED light to indicate battery strength Dimensions: 3 by 1.75 by .5 inches Two year manufacturer warranty PROGRAMMING MANUAL
