Linear / Accessory reference

Linear MDR-1 radio receiver

Identify MDR-1 as the exact receiver named in the Linear ACT chart and compare its documented radio-control pairings. Connected opener or gate compatibility requires separate evidence.

US source scopeUpdated 2026-09-11Independent Anderson reference

Match the whole number.

Manufacturer identifier: MDR-1. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

ACT transmitter and TRANS PROX compatibility chartPage 4, Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT transmitter and TRANS PROX compatibility chartPage 4 Gate Receivers cell, exact MDR-1 identifier · checked 2026-09-11 · 232495 B · Linear LLC
MDTK digital keypad instructionsPage 1, Programming Receivers, exact MDR identifier; no MDR-1 equivalence stated · checked 2026-09-11 · 208761 D · Linear LLC
ACT transmitter and TRANS PROX compatibility chart232495 B, page 4, Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC

Values apply to the exact identifier and scope in the cited source.
Component function	Radio receiver listed in the ACT compatibility chart View source and citation details ACT transmitter and TRANS PROX compatibility chartPage 4, Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
Identifier boundary	The ACT chart names MDR-1. Do not substitute the MDR identifier printed in the MDTK instructions. View source and citation details ACT transmitter and TRANS PROX compatibility chartPage 4 Gate Receivers cell, MDR-1; compare cited MDTK page 1 receiver scope · checked 2026-09-11 · 232495 B · Linear LLC
Power, channel count, memory and order number	Not documented View source and citation details ACT transmitter and TRANS PROX compatibility chartPage 4 Gate Receivers, exact MDR-1 identity only; extra specifications not established · checked 2026-09-11 · 232495 B · Linear LLC

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.

A component pairing applies only to the listed items and source conditions. It does not establish suitability for an installed opener or compatibility through another component.

Source statements and their exact conditions. Read the documented direction and conditions for each pairing.
Equipment or component / relationship	Evidence and conditions
ACT-31B Documented compatibility From ACT-31B to MDR-1.	Conditional ACT-31B is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-31B family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-31C Documented compatibility From ACT-31C to MDR-1.	Conditional ACT-31C is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-31C family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-31D Documented compatibility From ACT-31D to MDR-1.	Conditional ACT-31D is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-31D family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-31DH Documented compatibility From ACT-31DH to MDR-1.	Conditional ACT-31DH is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-31DH family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-31DHC Documented compatibility From ACT-31DHC to MDR-1.	Conditional ACT-31DHC is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-31DHC family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-34B Documented compatibility From ACT-34B to MDR-1.	Conditional ACT-34B is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-34B family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-34C Documented compatibility From ACT-34C to MDR-1.	Conditional ACT-34C is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-34C family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-34D Documented compatibility From ACT-34D to MDR-1.	Conditional ACT-34D is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-34D family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-34DH Documented compatibility From ACT-34DH to MDR-1.	Conditional ACT-34DH is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-34DH family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC
ACT-34DHC Documented compatibility From ACT-34DHC to MDR-1.	Conditional ACT-34DHC is documented for MDR-1 in MegaCode radio-control use. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope Market: US comparison-function: MegaCode radio control ACT transmitter and TRANS PROX compatibility chartPages 1-3, exact ACT-34DHC family row; page 4, compatibility chart Gate Receivers cell, exact MDR-1 row · checked 2026-09-11 · 232495 B · Linear LLC

Direct replacement paths

No direct successor for MDR-1 is verified in this reference.

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

The listed pairing applies in the direction shown above. Open the listed component’s reference to check its pairing with this 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

ACT transmitter and TRANS PROX compatibility chartLinear LLC · US · checked 2026-09-11 · 232495 B
MDTK digital keypad instructionsLinear LLC · US · checked 2026-09-11 · 208761 D

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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Confirm a missing detail

Use Linear 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.

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