TRES 100 P 300 HA Proximity RFID Reader USA
Written by DENNIS ILIN on March 12, 2026

Proximity RFID reader technology plays a vital role in modern commercial security systems, providing contactless credential authentication for controlled entry points. The TRES 100 P 300 HA proximity reader is engineered to deliver reliable 125 kHz RFID credential reading while maintaining a compact and durable design. Built for integration with electronic access control systems, it offers consistent performance in environments where dependable identity verification is essential.
Compact Reader Design for Secure Access Points
Businesses implementing door access control systems often require readers that are both reliable and flexible for different installation conditions. The TRES 100 P 300 HA meets these requirements with a slim mullion-style housing that allows mounting on narrow metal door frames, window frames, gates, and other surfaces. Its compact footprint makes it ideal for installations where space is limited but secure access management remains a priority.
With a read range of up to five inches and passive operation that requires no internal battery, this device provides efficient credential detection while minimizing maintenance requirements. Security integrators and facility managers looking for dependable RFID door entry systems can use this reader to support a wide variety of commercial and industrial security applications.
Proximity RFID Reader for Access Control Systems
The TRES 100 P 300 HA proximity RFID reader uses proven 125 kHz RFID technology to provide secure and consistent credential reading. When users present a compatible proximity card or tag, the reader communicates with the access control system to verify authorization and grant entry if the credentials are valid. This contactless authentication process improves convenience while maintaining strict access control policies.
Because of its compact mullion mount design, the reader can be installed in locations where larger access devices would not fit. This makes it a practical choice for narrow-frame doors commonly found in offices, commercial buildings, warehouses, and industrial facilities. Security installers frequently use compact readers like this when deploying smart door access control systems that require clean and professional installations.
Reliable Credential Verification and Compatibility
Credential compatibility is a critical factor when expanding or upgrading an access control system. The TRES 100 P 300 HA supports multiple proximity credential technologies, including Pyramid Series proximity cards and tags as well as select HID and AWID 125 kHz formats. This flexibility allows organizations to integrate the reader into existing systems without needing to replace large numbers of user credentials.
The reader’s consistent detection range of up to five inches ensures smooth entry for authorized personnel. Employees can present their cards quickly without needing to position them precisely against the reader. This improves efficiency in busy environments while still maintaining reliable authentication.
Reader Performance Highlights
- 125 kHz proximity RFID credential technology
- Up to 5 inch read range for dependable detection
- Compact mullion mount design for narrow installations
- Passive battery-free operation
- Compatibility with multiple proximity card technologies
Designed for Demanding Environments
Access control hardware installed at entry points must perform reliably under various environmental conditions. The TRES 100 P 300 HA is built with durable materials and certified to IP67 standards, providing protection against dust and water exposure. This allows the reader to operate effectively in both indoor and outdoor environments.
Its wide operating temperature range from −40°F to 149°F ensures dependable performance in extreme conditions. Whether installed at an exterior warehouse door, industrial facility entrance, or commercial office building, the reader maintains consistent credential recognition even in harsh climates.
Integration with Modern Security Systems
Security infrastructure today often combines access control with surveillance and monitoring systems. By integrating credential readers with video surveillance, businesses can verify entry events visually and maintain stronger security oversight. The TRES 100 P 300 HA proximity reader supports integration with electronic access control panels that can operate alongside network video surveillance systems.
Facilities implementing access control and CCTV integration gain the ability to review credential events alongside recorded video footage. This combination improves incident investigation and helps security teams monitor unauthorized access attempts. Businesses already using IP CCTV cameras and centralized monitoring platforms can easily incorporate this reader into their broader security strategy.
Common Commercial Applications
- Office building employee access control
- Warehouse and logistics facility entry management
- Educational institution staff access systems
- Industrial facility secure door authentication
- Retail store service entrances and restricted areas
Technical Performance for Security Installers
Professional installers rely on hardware that is simple to integrate while providing long-term reliability. The TRES 100 P 300 HA operates on a flexible +5 to 16 VDC power range and uses low current consumption, making it compatible with many electronic access control panels.
Advanced MAXSecure and fleaPower technologies enhance both security configuration and energy efficiency. These features help ensure stable credential authentication while minimizing energy usage. Passive proximity credentials also reduce maintenance because they do not require batteries inside cards or key fobs.
Technical Specifications
- Model: TRES 100 P 300 HA
- Technology: 125 kHz proximity RFID
- Read range: up to 5 inches
- Dimensions: 1.7″ W × 3.2″ H × 0.7″ D
- Operating voltage: +5 to 16 VDC
- Operating temperature: −40°F to 149°F
- Mounting: mullion, metal door frames, window frames
- Protection rating: IP67
- Weight: 3 oz (85 g)
- Certifications: FCC, ICC, CE, C-Tick, UL 294
Why Security Professionals Choose Alfa Iris
Alfa Iris supports security integrators, contractors, and facility managers by supplying dependable access control hardware designed for commercial environments. By providing credential readers, access control components, and surveillance equipment, the company helps businesses implement scalable security solutions.
The TRES 100 P 300 HA proximity RFID reader represents a practical option for organizations seeking reliable credential authentication with minimal maintenance. Its compact design, flexible installation options, and compatibility with multiple credential technologies make it suitable for a wide range of modern security deployments.
Summary
The TRES 100 P 300 HA proximity RFID reader provides reliable and efficient credential verification for commercial access control systems. With its 125 kHz RFID technology, consistent five-inch read range, passive battery-free operation, and durable IP67 construction, the device supports secure entry management across various industries. Businesses seeking dependable access control hardware can use this reader to build scalable and low-maintenance security systems.
