LiftMaster / Accessory reference

LiftMaster 813LMX

LiftMaster 813LMX: The supplier identifies 813LMX as a programmable three-button open/close/stop remote while retaining RC 813LM as its supplier number.

US source scopeUpdated 2026-09-12Independent Anderson reference

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Manufacturer identifier: 813LMX. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

Denco supplier reference: RC 813LMh1; span.sku; Description three-button/function and programmable-mode parent/nested bullets · checked 2026-09-12 · Denco

Values apply to the exact identifier and scope in the cited source.
Supplier-stated detail	The supplier identifies 813LMX as a programmable three-button open/close/stop remote while retaining RC 813LM as its supplier number. Denco supplier reference: RC 813LMh1; span.sku; Description three-button/function and programmable-mode parent/nested bullets · checked 2026-09-12 · Denco
Supplier-stated detail	Modes are encrypted DIP Security+ 2.0 labelled 813LM by default, 315 MHz DIP labelled 333LM, and 390 MHz DIP labelled 33LM. Denco supplier reference: RC 813LMh1; span.sku; Description three-button/function and programmable-mode parent/nested bullets · checked 2026-09-12 · Denco
Selection limitation	Three command buttons do not establish three independent doors. Mode labels are not aliases, and the 811LMX cloning claim does not establish cloning support for 813LMX. Denco supplier reference: RC 813LMh1; span.sku; Description three-button/function and programmable-mode parent/nested bullets · checked 2026-09-12 · Denco

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No direct successor for 813LMX is verified in this reference.

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Sources & scope

Denco supplier reference: RC 813LMDenco · US · checked 2026-09-12

Anderson prepared this reference from the listed evidence. Source statements are not an Anderson installation inspection or independent product test. Official documents stay on their publisher’s website.

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