Miller Edge MGS20 – 3-Sided Sensing Edge for 2″ Square Gate Posts
The Miller Edge MGS20 is a 3-sided sensing edge that wraps a 2-inch square gate post, detecting contact from three directions rather than a single face. It mounts directly to the post — no mounting channel required.
When touched, the edge sends an immediate electrical signal to the operator controls to stop and/or reverse gate operation.
Maximum length is 10 feet, and this edge must not be bent.
Lengths over 8 feet incur an additional shipping charge. Edges are custom made and are not returnable.
Before you order — four things to confirm
1. Post shape. The MGS20 fits square posts. For a 2 inch round post you need the MGR20 instead. Measure before ordering.
2. Length. Measure the full post height less caps — not required to exceed 6 ft. Maximum 10 ft. Ordered in 1/4 inch increments.
3. Cord location. Left, right, or universal.
4. Monitoring. Monitored if your gate operator was built after January 2016. Gate operators use the T2 (10K resistive) designator.
Not sure? See Which Miller Edge Sensing Edge Do I Need? Or call (866) 965-5599.
Dimensions
Overall 3-1/4″ wide × 2-11/16″ high, with a 2-1/16″ inner opening that seats over a 2 inch square post.
Does Your Gate Operator Need a Module?
Most gate operators take a T2 edge with no module. Some brands need an interface module between the edge and the controller:
| Module | Operator Brands |
|---|---|
| GEM-102 | IQ Gate (2/4-wire) |
| GEM-103 | Eagle Access Control, IQ Gate, Nice, PPA America |
| GEM-104 | All-O-Matic, Beninca, Byan Systems, FAAC, HySecurity, Maximum Controls, Ramset, SEA USA, V-Mag |
AutoGate, B&B ARMR, BFT, DoorKing, GTO/Linear, Power Master, VE Power, Rotary, Torxun, USAutomatic and Viking need no module. For wireless, use the RBand monitored wireless system.
Key Features
- 3-sided activation — detects contact on three faces of the post
- Sized for 2 inch square posts
- Direct mount, no channel required
- Custom manufactured to your specifications (color, length, cord location)
- Flexible PVC exterior, available in black or yellow
- Sealed assembly – impervious to dust and debris
- Patented Alumaglas™ contact element for superior performance (electric option)
- UL 325 Recognized Component
- 1-year warranty
- Made in USA
Common Applications
- Slide gate leading and trailing posts
- Swing gate posts
- Draw-in and pinch point protection
Available Configurations
- 2-wire monitored — T2 (10K) for gate operators
- 4-wire monitored
- Bumper — no sensor
Air-Wave and pneumatic configurations are not available on the 3-sided models. The designator is set by your operator, not by the edge — see the designator guide.
Related Products
- MGR20 — same 3-sided protection for 2 inch round posts
- MGO20 — slimmer 3-sided profile, takes a mounting channel
Downloads
MGS20 Specifications (PDF)
Complete Ordering Guide for Monitored Openers (PDF)
Gate Edge Handing Guide (PDF)
