MillerEdge MT21 Sensing Edge with Customizable Options

The Miller Edge MT21 Sensing Edge is a dependable safety solution designed to help protect personnel, equipment, and property in automated door systems. Engineered for use on rolling steel doors, fire doors, and material handling equipment, the MT21 detects contact with obstructions and signals the operator to stop or reverse door movement for enhanced safety and compliance.

Featuring a compact 2" wide x 1" high profile, the MT21 is designed for installation on door bottom bars and surfaces measuring 2 inches thick or greater. Its flexible construction conforms to uneven floor conditions, helping maintain consistent contact and reliable operation in demanding industrial environments.

Key Features

• Compact Profile: 2" W x 1" H design for doors and bottom bars 2" thick or greater
• Obstacle Detection: Activates stop or reverse functions when contact is detected
• Flexible Construction: Adapts to uneven floors for improved sealing and performance
• Durable Vinyl Jacket: Built to withstand demanding commercial and industrial applications
• Dust-Resistant Design: Sealed housing helps protect internal components
• Double-L Angle Mounting: Secure installation between bottom bar angles
• End Flaps Included: 5–6 inch flaps provide improved sealing at each end
• Available Configurations: Monitored and non-monitored models available
• Custom Options: Length, outlet location, and color selections available
• UL 325 Recognized Component: Designed to support commercial door safety compliance
• Made in the USA

Technical Specifications

• Model: MT21
• Profile Size: 2" W x 1" H
• Application Thickness: 2" minimum surface thickness
• Construction: Vinyl-jacketed sensing edge
• Mounting Style: Double-L angle bottom bar installation
• Warranty: 1-Year Manufacturer Warranty

Available Models

• MT21: 2" x 1" Profile
• MT22: 2" x 2" Profile
• MT33: 3" x 3" Profile

Common Applications

• Rolling steel doors
• Rolling fire doors
• Commercial overhead doors
• Material handling systems
• Conveyor systems
• Industrial automated door systems requiring UL 325 compliance

Benefits

• Improves safety by detecting obstructions during door operation
• Helps reduce the risk of injury and equipment damage
• Conforms to uneven surfaces for consistent contact
• Durable construction withstands harsh industrial environments
• Supports compliance with commercial door safety standards