Miller Edge / Accessory reference

Miller Edge MWRTA12: Single-channel sensing-edge radio system

MWRTA12: Single-channel sensing-edge radio system

US source scopeUpdated 2026-09-14Independent Anderson reference

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Manufacturer identifier: MWRTA12. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Radio · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Temperature · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 1: Door scope · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Exact components · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Input and output · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Power · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Enclosure boundary · checked 2026-09-14 · MWRT12_20220512 · Miller Edge

Values apply to the exact identifier and scope in the cited source.
Radio	318 MHz; listed response time 30 milliseconds and range 100 feet under optimal conditions. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Radio · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
Temperature	0 to 130 degrees F (-18 to 55 degrees C), as printed. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Temperature · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
Door scope	Non-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. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 1: Door scope · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
Exact components	MWR12 receiver plus MWTA12 transmitter, with the low-battery alarm. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Exact components · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
Input and output	Transmitter input is a two-wire normally open sensing edge; receiver offers normally open and normally closed output. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Input and output · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
Power	Receiver uses nominal 12-24 V AC/DC. Two 1.5 V AA lithium cells for the transmitter. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Power · checked 2026-09-14 · MWRT12_20220512 · Miller Edge
Enclosure boundary	Only the transmitter is listed as NEMA 4; no receiver protection rating is supplied. MWRT12 and MWRTA12 single-channel wireless systemsMWRT12_20220512, PDF page 2: Enclosure boundary · checked 2026-09-14 · MWRT12_20220512 · Miller Edge

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No direct successor for MWRTA12 is verified in this reference.

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Sources & scope

MWRT12 and MWRTA12 single-channel wireless systemsMiller Edge · US · checked 2026-09-14 · MWRT12_20220512

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