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Introduction
To reduce the risk of SEVERE INJURY to persons:
• DO NOT enable the LiftMaster Universal Garage Door Smartphone Controller if
operating either one-piece or swinging doors. To be enabled ONLY on a sectional
door.
Read instructions thoroughly BEFORE beginning.
If using this product with residential door openers, this product must
be used only with door openers manufactured after
1993
that utilize
photoelectric sensors. The photoelectric sensors are always located on
or near the bottom of the door track.
STOP
Thank you for your purchase of the 821LM Universal Garage Door Smartphone Controller.
This product is designed to connect to your current garage door opener through your
existing Wi-Fi connection and allow you to remotely monitor and control the status of your
door using a smartphone, tablet or PC. In addition to remotely controlling your garage
door, this product will also allow you to control interior lighting when programmed to
any MyQ-enabled Lighting products as well. The following installation guide will walk you
through the necessary steps to quickly install the hardware and program to your garage
door opener. Please ensure that you have the serial number (located on the bottom of the
Wi-Fi Hub or with the Wi-Fi Setup card) prior to installing this product. For a full manual,
please visit www.liftmaster.com.
