8587W 3/4 HP AC CHAIN DRIVE WI-FI GARAGE DOOR OPENER Reliable performance. 3-BUTTON REMOTE CONTROL (893MAX) Lets you operate up to 3 openers or myQ Light Accessories. myQ TECHNOLOGY Close it from anywhere. Open it for anyone. Get alerts SMART CONTROL PANEL (880LMW) Provides easy programming of the opener, remotes, keypads and myQ Accessories on an intuitive LCD display. RELIABLE 1/2 HP AC MOTOR is purposefully designed and built to last.CHAIN DRIVE SYSTEM for steqady performance and industrial strength.WARRANTY 4-year motor, 1-year parts. SMART BUILT-IN WI-FI for the easiest way to connect the garage.MyQ MOBILE APP lets users receive alerts and control the opener from anywhere. SECURE SECURITY+ 2.0 sends a new code with every romote click.POSILOCK electronically protects against forced openings.ALERT-2 CLOSE signals when a door is being closed by MyQ.THE PROTECTOR SYSTEM invisible light beam auto-reverses the door if there is an obstruction. MECHANICAL SPECS Steel Chassi, I-Beam and TrolleyFull Chain Drive Mechanism (16.1 Gear Reduction and Adjustable Door Arm)Auto-Force Adjustment for Changing Weather and Environmental ConditionsDual Sprocket: 6-Tooth, 8-Tooth2 Lock Terminals Allow up to 2Locks to Be Connected (Sold Seperately) SIMPLE, SECURE ACCESS Add these accessories so your family can get in and out safely. AUTOMATIC GARAGE DOOR LOCK 841LM Deadbolts the garage door automatically every time it closes (2 max.). WIRELESS KEYLESS ENTRY 877MAX Use a custom 4-digit PIN to open and close your garage door. MINI UNIVERSAL REMOTE CONTROL 374UT Every family member can get in and out quickly with this portable remote. SECURITY'S AT OUR CORE. For over 50 years, LiftMaster has been engineering cutting-edge products that work together to deliver comprehensive garage security. RIGHT ACCESS Protection features secure the garage and grant access only for you ILLUMINATION A bright garage lets you walk in with confidence. KNOWLEDGE Monitoring and controlling from anywhere for complete assurance.