Product overview 100 pack of 125KHz contactless proximity key fobs for access control. Each fob contains a fixed read only ID that is read by compatible 125KHz proximity readers. These compact tags are designed for convenient, reliable use with doors, gates, turnstiles, and other access control equipment. Why you need this product Streamline credential management for groups: supply staff, residents, contractors, or members with a simple, uniform access credential. Reduce downtime and complexity: read only tags prevent accidental reprogramming and simplify system administration. Practical and durable form factor: lightweight fobs attach to keys for everyday carry and easy identification. Key benefits and features Frequency and function: operates at 125KHz as a contactless proximity ID tag with read only memory for stable, fixed identification. Broad compatibility: works with access control readers and systems that support 125KHz read only proximity tags. Pack quantity: 100 pieces included to support large installations, replacements, or inventory stock. Ease of use: no batteries, no maintenance, and immediate recognition by compatible readers. Durable design: compact key fob shape for attachment to keyrings and regular handling. Performance highlights Quick read response typical of 125KHz proximity tags for smooth door and gate operation. Read only ID ensures the credential remains unchanged once issued, simplifying security policies. Typical applications Office buildings and coworking spaces: distribute to employees and contractors for controlled door access. Residential complexes and gated communities: provide residents and staff with a compact, easy to use entry credential. Parking facilities and gated entrances: integrate with 125KHz reader systems to control vehicle and pedestrian access. What to check before ordering Confirm your readers or access control system support 125KHz read only proximity tags to ensure compatibility. Plan quantities based on number of users, spare replacements, and future growth. This pack provides a straightforward, low maintenance solution for issuing consistent access credentials across a variety of 125KHz access control installations.