Standard Duty Operator LiftMaster® 8065 Remote compatable 891LM 

1/2 HP Chain Drive Door Operator. 

Rely on durable and powerful performance with our P3 Motors™, which are specifically built for use in Garage Door Openers.
Appreciate years of reliable, maintenance-free service from our powerful yet ultra-quiet, AC motor Chain Drive System.
Consume up to 75% less power in standby mode.
Have peace of mind with our four-year motor and one-year parts warranties.

Maximum width 20 feet

• Standard Features:
• 1/2 HP 115V single phase motor 
• Automatic Safety Reverse/Automatic Door Stop
• "Smart" radio receiver for one touch security code programming (transmitters sold separately)
• Security+® rolling code technology assures a new code is sent every time the remote control is used
• Motor overload protection
• 4 Year motor warranty 1-year parts warranty