TRES 100 P 620 HA Mullion Keypad Reader USA
Written by DENNIS ILIN on March 12, 2026

Mullion mount reader and keypad devices provide secure and efficient credential authentication for modern commercial access control systems. Facilities such as office buildings, warehouses, industrial plants, and secured campuses require compact hardware capable of managing controlled entry points while maintaining reliable RFID authentication. The TRES-100-P-620-HA from EMX is engineered to deliver dependable access control performance with integrated keypad functionality, enabling organizations to combine proximity card verification with PIN-based authentication.
Compact Mullion Mount Design for Controlled Entry
A mullion mount reader and keypad is specifically designed for installation on narrow metal door frames and window mullions where space is limited. The compact form factor of the TRES-100-P-620-HA allows installers to integrate the reader seamlessly into entry points without requiring large mounting surfaces or additional hardware modifications.
With support for 125 kHz proximity RFID technology, the device delivers secure credential authentication while maintaining fast and convenient user access. The integrated keypad allows administrators to implement multi-factor authentication by requiring both a proximity credential and a PIN code, increasing overall security for sensitive entry points.
Reliable Integration with Access Control Systems
The TRES-100-P-620-HA mullion mount reader and keypad integrates with a wide range of electronic access control systems through the industry standard Wiegand communication protocol. This compatibility enables seamless connection with controllers, door management platforms, and existing security infrastructure.
Organizations deploying commercial access control systems benefit from the reader’s ability to support multiple proximity card technologies, including Pyramid Series and selected HID and AWID 125 kHz credentials. This flexibility allows security integrators to deploy the reader in both new installations and system upgrades without replacing existing credentials.
Weather Resistant Hardware for Indoor and Outdoor Installations
Access control equipment must maintain dependable operation in a wide range of environmental conditions. The TRES-100-P-620-HA features a rugged IP67-rated enclosure designed to protect internal electronics from dust, moisture, and harsh weather exposure.
This durable construction allows the reader to operate reliably in both indoor and outdoor environments such as warehouse entrances, industrial facilities, secured office doors, and perimeter access points. Its sealed electronics and durable housing help ensure long-term reliability while minimizing maintenance requirements.
Key Benefits of Mullion Reader and Keypad Systems
- Compact mullion mount design for narrow door frame installations.
- Integrated keypad for multi-factor authentication.
- Support for multiple proximity credential technologies.
- Reliable Wiegand interface integration with controllers.
Advanced RFID Technology for Secure Authentication
The mullion mount reader and keypad uses advanced 125 kHz proximity RFID technology to provide reliable and efficient credential authentication. With a read range of up to 5 inches, users can conveniently present their cards or tags for quick verification while maintaining secure access control.
The device also incorporates MAXSecure™ and fleaPower™ technologies, enhancing both system security and energy efficiency. These features help protect credential data while minimizing power consumption for long-term operation.
Technical Specifications
- Technology: 125 kHz proximity RFID
- Read range: Up to 5 inches (126 mm)
- Communication: Wiegand interface
- Power input: +5 to 16 VDC
- Mounting: Mullion mount for door and window frames
- Environmental protection: IP67 rated enclosure
- Dimensions: 1.78″W x 6.1″H x 0.91″D
- Certifications: FCC, ICC, CE, C-Tick, UL Standard 294
Common Applications for Mullion Access Readers
Compact readers such as the TRES-100-P-620-HA are widely used in facilities where space-efficient access control hardware is required. Their narrow design makes them particularly suitable for installations where traditional readers cannot easily fit.
- Corporate office entrances with narrow door frames.
- Warehouse and logistics facility access points.
- Industrial manufacturing plant entry doors.
- Educational campuses and administrative buildings.
- Commercial facilities requiring secure employee access.
Summary
Mullion mount reader and keypad technology provides a compact and reliable solution for modern access control deployments. The TRES-100-P-620-HA combines secure 125 kHz RFID authentication, integrated keypad functionality, and durable IP67 environmental protection to deliver dependable performance for commercial and industrial environments.
For security professionals and system integrators, this reader offers a practical combination of flexible credential support, efficient installation, and long-term reliability for controlled entry points.
