Linear / Accessory reference
Linear ACT-31DH key-ring radio control
ACT-31DH identifies a key-ring radio control. The cited source supports only the exact facts and relationships shown; other equipment pairings remain unverified.
Match the whole number.
Manufacturer identifier: ACT-31DH. 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 3, table 1, row 1, Model Number / Part Number / Description columns · checked 2026-09-11 · 232495 B · Linear LLC
Documented alternate identifiers
- ACP00957
- ACT transmitter and TRANS PROX compatibility chartPage 3, table 1, row 1, Model Number / Part Number / Description columns · checked 2026-09-11 · 232495 B · Linear LLC
| Component function | Key-ring radio control
|
|---|---|
| Physical buttons | 1
|
| Coding configuration | factory
|
| Additional credential function | HID-compatible proximity tag
|
| Compatibility function | MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators.
|
| Battery type | 2016
|
| Battery quantity | 2
|
Documented fitment & exclusions
Read the exact equipment or receiver, market, production and variant limits in every row. An omitted pairing has not been verified by this reference.
A receiver radio pairing applies only to the listed devices and source conditions. It does not establish the receiver’s suitability for an installed opener or compatibility through another device.
| Equipment or receiver / relationship | Evidence and conditions |
|---|---|
| MDR-1 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. 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
|
| MDR-2 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for MDR-2 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
|
| MDR/U Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for MDR/U in MegaCode radio-control use. MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators. Enroll the transmitter code using the exact equipment instructions; custom and factory coding configurations remain distinct. This pairing concerns radio reception by MDR/U, not every opener connected downstream. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope
|
| MDRG Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for MDRG 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
|
| MGR Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for MGR 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
|
| MGR-2 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for MGR-2 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
|
| SMDRG Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for SMDRG 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
|
| LCO75 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for LCO75 in MegaCode radio-control use. MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators. Enroll the transmitter code using the exact equipment instructions; custom and factory coding configurations remain distinct. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope
|
| LSO50 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for LSO50 in MegaCode radio-control use. MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators. Enroll the transmitter code using the exact equipment instructions; custom and factory coding configurations remain distinct. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope
|
| LDCO800 Documented compatibility From ACT-31DH to LDCO800. | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for LDCO800 in MegaCode radio-control use. MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators. Enroll the transmitter code using the exact equipment instructions; custom and factory coding configurations remain distinct. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope
|
| LDO33 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for LDO33 in MegaCode radio-control use. MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators. Enroll the transmitter code using the exact equipment instructions; custom and factory coding configurations remain distinct. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope
|
| LDO50 Documented compatibility | Conditional Additional source conditions or an adapter must be checked before confirming compatibility. Details still needed
Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified. ACT-31DH is documented for LDO50 in MegaCode radio-control use. MegaCode radio transmitter function only. The chart's proximity-reader entries and bold formatting do not establish proximity-reader functionality in these garage operators. Enroll the transmitter code using the exact equipment instructions; custom and factory coding configurations remain distinct. Code enrollment and installation follow the exact equipment instructions; this does not verify an installed system. Applies only within this source scope
|
Direct replacement paths
No direct successor for ACT-31DH 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 receiver.
Check a part or accessory pairing
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
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.
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.