Liftmaster 3850

*Powerful 12v DC Motor
*Belt-driven
*Integrated Battery
Backup
*Patented Smart
Control Panel
*Lifetime Motor/Belt
Warranty

Liftmaster 3585

*Powerful 3/4hp Motor
*Chain-driven
*I-beam Rail & Chassis
*MVIS for quiet
operation
*Patented Smart
Control Panel
*Lifetime Motor/Belt
Warranty

Liftmaster 3280

*Powerful 1/2hp Motor
*Belt-driven
*MVIS for quiet
operation
*Mulit-function Control
Panel
*Lifetime Motor/Belt
Warranty

Liftmaster 3800

*Powerful 24v DC Motor
*Integrated Battery
Backup
*Patented Smart
Control Panel
*Lifetime Motor
Warranty