Keyless entry pad: the unit attached to the outside of your home that accepts a PIN number which opens your garage door

Keypad: the unit attached to the outside of your home that accepts a PIN number which opens your garage door

Motor unit: the part of your garage door opener hanging from the ceiling of your garage

Power head: the part of your garage door opener hanging from the ceiling of your garage

Remote control: buttons on a unit that you keep in your car or purse to open your garage door

Torsion springs: springs mounted above your garage door on a horizontal shaft

Transmitter: buttons on a unit that you keep in your car or purse to open your garage door