LiftMaster / Accessory reference

LiftMaster 412HM

LiftMaster 412HM: 390 MHz coaxial receiver: high-security mode accepts up to 15 Security+ remotes.

US source scopeUpdated 2026-09-12Independent Anderson reference

Match the whole number.

Manufacturer identifier: 412HM. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

Denco supplier reference: RC 412HMh1; span.sku; Description paragraph: high/normal modes, capacities and explicit normal-mode combinations · checked 2026-09-12 · Denco

Values apply to the exact identifier and scope in the cited source.
Supplier-stated detail	390 MHz coaxial receiver: high-security mode accepts up to 15 Security+ remotes. Denco supplier reference: RC 412HMh1; span.sku; Description paragraph: high/normal modes, capacities and explicit normal-mode combinations · checked 2026-09-12 · Denco
Supplier-stated detail	Normal-security mode accepts up to 31 remotes, including combinations of Security+, Billion Code and DIP-switch types. Denco supplier reference: RC 412HMh1; span.sku; Description paragraph: high/normal modes, capacities and explicit normal-mode combinations · checked 2026-09-12 · Denco
Selection limitation	Mode capacities are alternatives. Exact remote identities and receiver power are not supplied; the mixed-type statement applies to this receiver’s description. Denco supplier reference: RC 412HMh1; span.sku; Description paragraph: high/normal modes, capacities and explicit normal-mode combinations · checked 2026-09-12 · Denco

Documented fitment & exclusions

Read the exact equipment or component, market, production and variant limits in every row. An omitted pairing has not been verified by this reference.

No equipment or component pairing is verified in this published reference. Match the exact equipment with LiftMaster official support before selecting a component.

Direct replacement paths

No direct successor for 412HM is verified in this reference.

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

Compare exact equipment or a component.

Check a part or accessory pairing

Part or accessory brand

Narrow part or accessory choices by the complete number (optional)

Loading part or accessory choices…

Part or accessory

Selected: 412HM · Read its reference. Selection identifies a record; it does not confirm fitment.

Equipment or accessory brand

Choose the equipment or accessory brand separately from the component brand. A missing identifier is unverified. Use the model library to identify your equipment and its source documents.

An accessory pairing, including a receiver or wall console, applies only to the exact listed pair and source conditions. It does not establish suitability for your installed opener or compatibility through another device.

Choose the equipment or accessory brand to load its published identifiers.

Equipment market

Production date, if known

Use the production date on the label or records, not the purchase date. Leave blank if unknown.

Use part and model numbers only. Never enter a serial number, PIN or access code. Your entry is used for this lookup and is not put in the page address, saved in browser storage or sent to analytics.

Choose a task and enter or select an exact identifier.

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 412HMDenco · 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.

Related equipment guides

Browse the model library →

Confirm a missing detail

Use LiftMaster official support and match the complete part number, equipment model and production details with the source scope.

Use safely accessible labels and existing paperwork. Do not remove powered covers or adjust springs or cables to identify a component.

This is an independent Anderson reference. Manufacturer names identify the equipment and do not imply affiliation or authorized-dealer status. Anderson provides repair service in its listed Connecticut communities.

A reference listing does not establish current stock, a price, eligibility for manufacturer support or that a component is faulty.