125kHz RFID Key Button Smart Chip Card Tag
High-performance RFID key fob with durable ABS plastic casing, precision-embedded TK4100 chip for stable 125kHz frequency operation. Rewritable memory supports multiple access control reprogramming. Compact and lightweight design (standard keychain attachment), ideal for door entry systems, hotel management, gym lockers, warehouse security, and parking access. Water-resistant and shockproof construction ensures long-term reliability. Bulk pricing available for large-scale deployments. Globally compatible with most 125kHz RFID readers. Ships with factory-default UID, ready for immediate encoding. Minimalist aesthetic suits professional and residential use.