The Liftmaster 3900 is ideal for applications where a light-duty
Commercial Door Operator is required, such as warehouses, 10' x 10'
applications.
STANDARD FEATURES:
Commercial Sectional Applications with 1" Torsion Bar
May be used for high-lift and sectional doors measuring up to 14' high and
18' wide, not exceeding 180 sq. feet
Heavy-Duty Motor 24V DC Motor
Rated Up to 10 Cycles Per Hour
Push Button Limit Settings
Compact Design
Lifetime Motor Warranty
UL325 Compliant
INCLUDED ACCESSORIES:
Single-Button Push-Button Station
The Protector Systems Safety Sensors
Cable Tension Monitor
OPTIONAL ACCESSORIES:
Power Door Lock-prevents the door from being manually forced open once
fully closed
Alternate Mounting Kit - allows operator to be mounted below the torsion
bar
380LM Remote Light -adds 200 watts of light
with adjustable light time delay; unlimited number of lights can be added
377LM Keyless Entry Pad-allows door to open
or close by using a code programmed directly into the unit
373P or 373LM Premium Remote Control(Can be
programmed into the on-board receiver. A maximum of 8 transmitters can be
programmed to work with the Liftmaster 3900 Commercial Opener)
475LM Battery Backup-operates the door
operator for up to 20 full cycles within a 24 hour period
Free shipping(Included in price) of this product is via UPS GROUND.
Please select FREE SHIPPING when checking out. If you want it shipped via
another method besides UPS GROUND, select desired method
accordingly.
