Miller Edge ME123 – 2-Inch Extruded Sensing Edge
The Miller Edge ME123 is the industry's go-to 2-inch extruded sensing edge, designed to fit a wide variety of door applications. When lightly touched, it sends an immediate electrical signal to the operator controls to stop and/or reverse operation.
This slide-in style edge uses a double-T mounting design for superior stability, and mounts vertically or horizontally. It is custom manufactured to your specified color, length, and cord location.
Before you order — five things to confirm
1. Length. Built to your measurement. Maximum length depends on configuration: 100 ft electric, 60 ft Air-Wave, 18 ft pneumatic.
2. Cord location. Left, right, end, top, or universal end plug — see the diagram below.
3. Color. Black or yellow.
4. Monitoring. The designator is set by your operator, not by the edge — see the designator guide.
5. Mounting channel. Choose a profile below, or select NONE if you are replacing an edge in a channel you already have.
Not sure this is the right model? See Which Miller Edge Sensing Edge Do I Need?
Mounting Channel Options
All ME123 channels measure 1-1/2″ high × 2″ wide. Match the profile to your mounting surface, or choose NONE when dropping a replacement edge into an existing channel.

| Option | Material |
|---|---|
| NONE | Edge only — for replacement in an existing channel |
| ME123-C | High Density PVC |
| ME123-C1 | High Density PVC |
| ME123-C2175 | High Density PVC |
| ME123-C3 | High Density PVC |
| ME123-CA3 | Aluminum (brushed) |
| ME123-C7 | High Density PVC |
Cord Location
The cord output is where the lead exits the edge. Choose the position that suits your installation:
- L or R — left or right, referenced from the inside looking out. Which side is your operator mounted on?
- E — end of the edge
- T — top, exiting the back face
- Universal end plug — plug-in connection at the end

Get this wrong and the lead runs the opposite way across the opening — and the edge is built to order. See the Gate Edge Handing Guide if you are unsure.
Key Features
- Easy to install
- Optimum size for 2-inch thick surfaces
- Double-T design for added stability
- Mounts vertically or horizontally
- Sealed assembly – impervious to dust and debris
- Various mounting channel options
- Custom manufactured to your specifications (color, length, cord location)
- Patented Alumaglas™ contact element for superior performance (electric option)
- UL 325 Recognized Component
- 1-year warranty (2-year for ME123-U)
- Made in USA
Common Applications
- Sectional doors
- Horizontal sliding doors
- Scissor lifts
- Conveyor systems
- Presses and machine guarding
Dimensions

Specifications
| Color | Black or yellow |
| Length | Ordered in 1/4 in. increments (manufacturing tolerance ±1/4 in.) |
| Maximum length | Electric 100 ft · Air-Wave 60 ft · Pneumatic 18 ft |
| Sensitivity | Nominal 6–11 lbf |
| Lead wire | SJTO 18 gauge, 2 ft length, or 22 gauge universal, 2 ft length |
| Wire outlet location | Left, right, end, top, or universal end plug |
| Electrical maximum | 24 volts AC/DC, 1/2 amp |
| Electrical configuration | Normally open |
| Exterior material | Flexible PVC |
| Contact element | Alumaglas™ (electric configurations) |
| Agency approvals | UL 325 Recognized Component |
Available Configurations
- Monitored, 2-wire — 10K resistor, 8.2K resistor, or diode capacitor
- Monitored, 4-wire
- Non-monitored — 2-wire, Air-Wave, or pneumatic
Additional options include coil cord attached, end flaps, 10 ft lead wire, universal end plug, and series connect.
Optional Universal End Plug

Important: Edges are custom-made and non-returnable. Confirm compatibility with your door operator manufacturer before ordering.
Downloads
ME123 Specification Sheet (PDF)
Complete Monitored Openers Ordering Guide (PDF)
Gate Edge Handing Guide (PDF)