K20-8100M-DC is a 1HP Motor Replacement Kit (90VDC BM CF). For use with various LiftMaster® 1HP 1-Phase Commercial Door Operators and Gate Operator Systems
Light curtain made up of a series of thru-beam photo eyes designed to provide a dense barrier of protection for motorized or high speed doors.
Ideal for environments that require expanded protection for protruding parts that may not be detected by standard single-beam photo eyes mounted 6" above the floor.
Ideal for pre-2010 installations not requiring a monitored solution.
Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
The operators are typically mounted to the wall when used with smaller sectional overhead doors with a vertical or high lift and mounted to the wall or the front of the hood when used with rolling doors and grilles.
J operators are attached to the door jackshaft to indirectly drive the door
MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
Security+ 2.0® safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you
The Loop Replacement System (LRS) features advanced 3-axis magnetoresistive sensing technology that responds to changes in the Earth’s magnetic field caused by ferrous objects.
Three sensing elements provide measurements in the X Y and Z axes to improve detection sensitivity when used in either above or below ground installations.
The LRS is equipped with our new DETECT-ON-STOP™ or (DOS®) feature which allows detection only when a vehicle has come to a complete stop.
IMPORTANT NOTE: The new safety reversing sensor brackets are only compatible with the new safety reversing sensors (041-0136) and are NOT compatible with older style safety reversing sensors.
For safety reversing sensor brackets compatible with models pre-2021 refer to 041A5266-3.
Compatible with LiftMaster® Models 85503 & 85503-267 DC Battery Backup Belt Drive WiFi® Garage Door Openers; featuring myQ® technology and Secure View™ Video Camera.