This Stanley 3089 / 3089-13 is a single button visor remote control transmitter. Although this unit looks like the much more common 300 MHz unit, please not this will only work on 310 MHz radio receivers most commonly assocaited with Stanley garage door or automatic gate openers.
♦310 MHz frequency gate or garage door remote transmitter
♦10 dip switch programming, one (1) button
♦Visor clip, 9V battery and one year warranty included
♦Compatible with ALL 310 MHz Multicode gate or garage door opener systems
♦Replaces Multicode model 1089 310MHz 10 Dip Switch Remotes
♦Replaces MultiElmac 3089
♦Dimensions: 3.75 x 2.5 x .875 inches