RFID key fob Atlo ATLO-505/B with writable/modifiable UID, proximity access tag

The Atlo ATLO-505/B RFID key fob is a compact proximity access tag with a writable/modifiable UID, designed for flexible identification and integration with access control systems. Built for everyday carry, the key fob attaches easily to key rings and provides a discreet way to represent a user or device identity in environments that accept compatible 125 kHz/13.56 MHz proximity readers or other supported RFID standards.

Advantages

The writable UID enables administrators and integrators to program or update the tag identifier to match system requirements without replacing hardware. Its small, durable form factor offers convenient portability and reliable proximity reading for door entry, tagging equipment, or temporary access credentials. The design supports straightforward installation into existing RFID setups where UID modification is permitted.

Suitable for

• Door access and building entry systems that accept writable UID tags
• Temporary or transferable access credentials for staff, contractors, or visitors
• Asset tagging and equipment identification where UID reassignment is needed
• Integration with time and attendance systems that use proximity tags

Key specifications

• Form factor: key fob for attachment to key rings
• UID: writable/modifiable identifier for flexible programming
• Compatibility: designed for proximity RFID systems (check reader frequency and tag standard compatibility before deployment)
• Use case: short-range proximity reading for access control and tagging
• Durability: compact and portable housing suitable for daily carry

How to use

Program or modify the UID using a compatible RFID writer or access control software according to the system’s supported tag standard. Once programmed, present the key fob near the reader antenna until access is granted or the reader confirms a successful read. For new deployments, enroll the tag identifier in the access control database and assign required permissions or schedules. Handle the fob like a standard access credential and avoid contact with strong magnetic fields or prolonged exposure to moisture to preserve reader performance.

Usage recommendations

Verify reader compatibility and any system-side restrictions on UID modification before programming. Keep a record of assigned UIDs and maintain secure procedures for reprogramming or decommissioning tags to prevent unauthorized access.