Internal chain and sprocket drive mechanism. Auto-force adjustment for the changing weather and environmental conditions. Electronic limits for easy setup. DC Wi-Fi® Logic Board with a built-in surge suppressor.Reliable, heavy-duty 12V DC motor with automatic thermal protection and permanent lubrication. Smooth start/stop reduces wear for lasting performance. A speed of 8.5" per second for the door to move upward and 7.6" per second for the door to move downward. Security+ 2.0® safeguards facility access with rolling code technology, opening for registered devices ONLY. The Protector System® automatically reverses the door if an entrapment protection device detects an obstruction. Total HEADROOM CLEARANCE REQUIRED: 3-inches from the center of the torsion bar MAX. Commercial Door Operator (LJ8900W) Cable Tension Monitor (041A6104) Push-Button Control Station (APBS1) The Protector System® Safety Reversing Sensors.
The item "LIFTMASTER 8900W LT DUTY COMMERCIAL Garage Door Opener with WIFI LJ8900W, 3900" is in sale since Friday, April 13, 2018. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Garage Doors".The seller is "opendoorllc" and is located in Grand Rapids, Michigan. This item can be shipped worldwide.