Linear KFB125-H 125 kHz Key Fob for HID Readers, 25-Pack, (Replaces 830-00440)

125kHz RFID key fob with contactless read range up to 3.5". Features sturdy ABS plastic construction in off-white and complies with Wiegand communication protocol for compatibility with select proximity card readers. Available in standard 26-bit format or custom formats to match your access control system. Each fob is printed with part number for convenient reordering. Ideal for building access, parking, and security applications requiring reliable, durable identification credentials.