Denco supplier catalog / Accessory reference

RC MC4120: Multi-Code 4120 2BTN Transmitter

Multi-Code 4120 is described as a 2-button 300 MHz transmitter with ten DIP switches.

US source scopeUpdated 2026-09-12Independent Anderson reference

Match the whole number.

Denco catalog number: RC MC4120. Keep the complete supplier number, including prefixes and suffixes. This identifies the supplier catalog listing.

A corresponding manufacturer part number or equivalent component has not been verified. Any manufacturer or designation stated by the supplier is labeled separately below.

Denco supplier reference: RC MC4120Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco

Denco supplier reference: RC MC4120Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco

Values apply to the exact identifier and scope in the cited source.
Supplier-stated detail	Multi-Code 4120 is described as a 2-button 300 MHz transmitter with ten DIP switches. View source and citation details Denco supplier reference: RC MC4120Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco
Selection limitation	Exact receivers, per-button switch layout, battery and dimensions are unspecified. Shared frequency or Multi-Code family wording does not establish every installed opener. View source and citation details Denco supplier reference: RC MC4120Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco

Compare Multi-Code transmitter button counts

These supplier listings distinguish one, two and four physical buttons. All three list 300 MHz and ten DIP switches, but those shared details do not identify an exact compatible receiver or the number of enrolled openers. Keep each full supplier number and its stated limits.

Separate references with their own source scope. This comparison establishes no replacement or interchangeability.
Exact reference	Supplier-stated detail	Selection limitation
RC MC3089	Multi-Code 3089 is described as a 1-button 300 MHz transmitter with ten DIP switches. View source and citation details Denco supplier reference: RC MC3089Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco	Exact receiver/opener pairings, battery and dimensions are unspecified. Its named inclusion in the Double Set is kit-content evidence, not universal compatibility. View source and citation details Denco supplier reference: RC MC3089Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco
RC MC4120 This reference	Multi-Code 4120 is described as a 2-button 300 MHz transmitter with ten DIP switches. View source and citation details Denco supplier reference: RC MC4120Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco	Exact receivers, per-button switch layout, battery and dimensions are unspecified. Shared frequency or Multi-Code family wording does not establish every installed opener. View source and citation details Denco supplier reference: RC MC4120Product h1 and span.sku; Description button count, RF and switches · checked 2026-09-12 · Denco
RC MC4140	Multi-Code 4140 is described as a 4-button transmitter operating at 300 MHz with ten DIP switches. View source and citation details Denco supplier reference: RC MC4140Product h1 and span.sku; Description button, form where explicit, RF and switches · checked 2026-09-12 · Denco	Four buttons do not independently establish four enrolled openers. Exact receivers, per-button switch banks, battery and dimensions are unspecified. View source and citation details Denco supplier reference: RC MC4140Product h1 and span.sku; Description button, form where explicit, RF and switches · checked 2026-09-12 · Denco

A specification absent from one reference is not established by the other. Keep the exact identifier, configuration and cited revision when comparing.

Documented fitment & exclusions

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No equipment or component pairing is verified in this published reference. Match the exact equipment with Denco catalog source before selecting a component.

Direct replacement paths

No direct successor for RC MC4120 is verified in this reference.

A direct replacement statement does not establish reverse interchangeability, a kit equivalent or a later replacement chain.

This reference has no documented compatible or incompatible pairing to check. Use the facts and source scope above to identify the item. You can also look up another part or accessory. A missing pairing does not establish incompatibility.

Recall references

No recall reference is included for this identifier in the published dataset. This is not a safety clearance or proof that no recall exists.

Sources & scope

Denco supplier reference: RC MC4120Denco · 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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