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Miller Edge / Accessory reference

Miller Edge MWTA12B: Non-monitored wireless edge transmitter with low-battery alarm

MWTA12B: Non-monitored wireless edge transmitter with low-battery alarm

US source scopeUpdated 2026-09-14Independent Anderson reference

Match the whole number.

Manufacturer identifier: MWTA12B. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

Values apply to the exact identifier and scope in the cited source.
Input or outputTwo-wire normally open sensing-edge input
Power specificationTwo 1.5 V AA lithium cells in this revision
Housing1-13/16 W x 5-3/4 H x 2-1/8 D inches; NEMA 4 transmitter
Alarm80-95 dB at two feet is the listed low-battery alarm rating
Radio identification318 MHz with nine-position two-state DIP selection; listed range is 100 feet under optimal conditions. Frequency alone does not prove compatibility.
Monitoring boundaryThis is a non-monitored edge system. The source describes legacy door operators manufactured before August 2010. Confirm the installed operator and its protection requirements; an older manufacture date alone is not approval.

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. Use the checker below to compare equipment or a component.
Equipment or component / relationshipEvidence and conditions
MWR12B

Documented compatibility

From MWTA12B to MWR12B.

Conditional

Additional source conditions or an adapter must be checked before confirming compatibility.

Details still needed
  • input
  • source conditions

Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified.

MWTA12B is explicitly paired with MWR12B in the non-monitored edge system.

Applies only within this source scope
  • Market: US
  • input: 2-wire normally open, non-monitored
  • Use the exact source-listed receiver/transmitter combination and confirm the installed operator requirements. No monitored capability, cross-generation radio fitment or downstream opener compatibility is established.
MWR22B

Documented compatibility

From MWTA12B to MWR22B.

Conditional

Additional source conditions or an adapter must be checked before confirming compatibility.

Details still needed
  • input
  • source conditions

Use the exact label and the source scope below. An unanswered condition keeps this result conditional or unverified.

MWTA12B is explicitly paired with MWR22B in the non-monitored edge system.

Applies only within this source scope
  • Market: US
  • input: 2-wire normally open, non-monitored
  • Use the exact source-listed receiver/transmitter combination and confirm the installed operator requirements. No monitored capability, cross-generation radio fitment or downstream opener compatibility is established.

Direct replacement paths

No direct successor for MWTA12B is verified in this reference.

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

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Selected: MWTA12B · Read its reference. Selection identifies a record; it does not confirm fitment.

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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.

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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

  1. Single-Channel Wireless System MWRT12B and MWRTA12BMiller Edge · US · checked 2026-09-13 · MWRT12B-MWRTA12B_Spec_20240412
  2. Two-Channel Wireless System MWR22B with MWT12B or MWTA12BMiller Edge · US · checked 2026-09-13 · MWR22B-MWT12B-MWTA12B_Spec_20240412

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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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.

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