Connecticut Garage Door Repair & InstallationOpen 24 Hours — 7 Days a Week
Anderson Garage Door Service
Call for Service(203) 902-3902Call anytime · appointments based on current availability

Miller Edge / Accessory reference

Miller Edge MWTA12: Sensing-edge transmitter with low-battery alarm

MWTA12: Sensing-edge transmitter with low-battery alarm

US source scopeUpdated 2026-09-14Independent Anderson reference

Match the whole number.

Manufacturer identifier: MWTA12. 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.
Radio318 MHz; listed response time 30 milliseconds and range 100 feet under optimal conditions.
Temperature0 to 130 degrees F (-18 to 55 degrees C), as printed.
Door scopeNon-monitored wireless sensing-edge system for motorized doors. The sheet discusses operators made before August 2010; this date alone does not establish suitability or permit replacing required monitoring.
InputTwo-wire normally open sensing-edge input.
PowerTwo 1.5 V AA lithium batteries.
EnclosurePolycarbonate NEMA 4 enclosure; 1-13/16 W x 5-3/4 H x 2-1/8 D inches (46 x 146 x 54 mm).
Low batteryAudible alarm is listed at 80-95 dB at 2 feet; the introduction describes activation at 25% remaining battery life.

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
MWR12

Documented compatibility

From MWTA12 to MWR12.

Conditional

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

Details still needed
  • configuration
  • source conditions

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

MWTA12 is explicitly named with MWR12 in the reviewed source scope.

Applies only within this source scope
  • Market: US
  • configuration: 2-wire non-monitored normally open
  • Confirm the exact supplied components and source revision. Exact single-channel system option; preserve transmitter type and non-monitored two-wire normally open input.
  • The receiver is part of a non-monitored system. A pre-August-2010 door-operator reference is not universal fitment or permission to replace required monitoring.
MWR13

Documented compatibility

From MWTA12 to MWR13.

Conditional

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

Details still needed
  • configuration
  • source conditions

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

MWTA12 is explicitly named with MWR13 in the reviewed source scope.

Applies only within this source scope
  • Market: US
  • configuration: 2-wire non-monitored normally open
  • Confirm the exact supplied components and source revision. The options explicitly pair one MWR13 with two or three transmitters of the named type. Do not infer mixed-transmitter combinations, monitoring or downstream opener compatibility.
  • The receiver is part of a non-monitored system. A pre-August-2010 door-operator reference is not universal fitment or permission to replace required monitoring.

Direct replacement paths

No direct successor for MWTA12 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

Loading part or accessory choices…

Selected: MWTA12 · Read its reference. Selection identifies a record; it does not confirm fitment.

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.

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

  1. MWR13 three-channel system with MWT12 or MWTA12Miller Edge · US · checked 2026-09-14 · MWR13-MWT12_20220512
  2. MWRT12 and MWRTA12 single-channel wireless systemsMiller Edge · US · checked 2026-09-14 · MWRT12_20220512

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 Miller Edge 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.

Call (203) 902-3902 — Check Today's Availability