22
Chain Guard:
The chain guard is required to comply
with UL requirements for applications
where the drive chain is exposed lower
than 8 feet (2.5 m).
Guide Mounting Bracket Kit:
The bracket can be mounted in several
different configurations with the motor
location outside or inside the door guides.
ACCESSORIES
41A5281
377LM
Extension Brackets:
(Optional) For safety reversing sensor
installation onto the wall or floor.
Keyless Entry with Security✚
®
:
Enables end user to operate door
operator from outside by entering a
password on a specially designed
keyboard. Also can add a temporary
password for visitors or service
persons. This temporary password
can be limited to a programmable
number of hours or entries.
EverCharge
®
Standby Power System:
Provides backup power to the model
3900 door operator.
475LM
41A6102
380LM
3950MB
3950CGJ
372LM
Remote Work Light:
Enables homeowner to turn on a work
light from their car with their door
operator remote or from anywhere in
their home with an additional LiftMaster
Security✚
®
remote.
Power Door Lock:
Enables the end user to prevent the door
from being manually opened once closed.
371LM 1-Button Security✚
®
Remote Control :
Includes visor clip.
373LM 3-Button Security✚
®
Remote Control :
Includes visor clip.
2-Button Security✚
®
Remote Control :
Includes visor clip.
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