Hirsch 4082 Prox Key Fob - 36 Bit S12906 The Hirsch 4082 Proximity Key Fob provides compact 125kHz proximity credential technology with 36-bit S12906 formatting for secure access control applications. Its durable, keyring-ready design offers reliable and convenient everyday credential use. Manufacturer: Hirsch SKU: 906-4082 Card Start Range (0-16,777,215) * $5.70 This product has a minimum quantity of 50 Qty: Add to cart Ship to Select country United States of America * Other * Shipping Method Name Estimated Delivery Price No shipping options Apply Custom wishlist OK Add to wishlist Add to compare list Email a friend The Hirsch 4082 Proximity Key Fob is designed to support new and existing physical access control systems utilizing 125kHz proximity credential technology. Featuring a compact and rugged key fob form factor, these credentials provide a convenient alternative to traditional access cards while maintaining reliable performance in daily use environments. Built for durability, the fob is ideal for attachment to keyrings, badge reels, or lanyards, making it suitable for employees, contractors, and authorized personnel across commercial facilities, healthcare campuses, educational institutions, residential properties, and industrial environments. Its compact design allows for easy portability without compromising read performance in compatible 125kHz proximity reader systems. Programmed using 36-bit S12906 formatting, these credentials support secure and scalable credential management for access control systems requiring structured encoding formats. 125kHz proximity credential technology 36-bit S12906 formatting Compact key fob design Durable construction for daily use Keyring, lanyard, or badge reel compatible Reliable performance for physical access control applications Portable alternative to proximity cards