When the Linear 1-Button MTS1 MegaCode transmitter is programmed to a Linear garage door opener or Linear gate opener it uses a unique code when the remote button is pressed. Each transmitter is permanently coded at the factory and the radio receiver is programmed by learning the remote's unique code.
The MTS1 comes with one (1) CR2032 3-volt lithium battery. The blue light on the Linear remote will glow when the remote button is pressed and when sending a signal. If the blue light is dim then the remote battery should be replaced. Under normal use, the batteries should last 3 years.
The Linear MTS1 remote is also compatible with vehicles equipped with Homelink. If your vehicle has the Homelink buttons (refer to your car owner's manual) then the Homelink buttons in the car can be programmed using the Linear MTS1 remote after it has been programmed to the garage door opener. You can use the Homelink website here to find the specific programming instructions for your car and garage door opener.