Liftmaster LA500DCS Secondary Arm

CONNECTIVITY

• MyQ® Technology enables you to securely control and monitor your gate operator from anywhere and get activity notifications through the MyQ App
• Wireless Dual-Gate Communication eliminates expensive conduit costs and avoids unsightly driveway scars

PERFORMANCE

• Battery Backup secures and safeguards your property by providing up to 500 cycles or up to 24 days of standby power when the power is down
• P3 Motors®—purpose-built motor designed to meet your applications' requirements
• Soft start/stop operation
• Commercial-duty cast-aluminum housing
• Wormgear reduction, precision-machined all-metal gear
• Electronic limit setting
• 2-digit LED diagnostic display
• Integrated Plug-In Loop Detector inputs
• Keyed manual disconnect
• 2 auxiliary power outlets
• Party Pass—selectable hold-open feature
• Bi-part delay
• Surge suppression/lightning protection up to 50 ft. away

SAFETY

• Includes Monitored Retro-Reflective Photo Eye (LMRRU)
• Monitored safety inputs with colored terminal blocks (3 on main board, 3 on optional expansion board)
• UL /cUL Listed, tested to the most stringent industry guidelines
• Security+ 2.0® Technology access your property quickly with Security+ 2.0 Technology that utilizes a tri-band signal that virtually eliminates interference and offers extended range each time the remote is used
 — 3-channel receiver—OPEN/CLOSE/STOP
 — Compatible with HOMELINK® version 4 and higher
 — Receiver stores up to 50 remote controls (unlimited with 811LM/813LM)

• Inherent reversing sensor detects obstructions or increased loads. Reverses gate when closing or stops/reverses the gate when opening
• Fire department compliance—auto open on AC failure or battery depletion
• Pre-motion warning alarm
• Synchronized close
• Timer-to-Close