Introduction: RFID key fob is a great solution for security systems, access control systems and time attendance systems. Specification: Chip: Custom Material: PVC Color: White/ Grey Dimensions: 52.8x26x1.2mm Read range: Depending on the chip & reader design Working temperature: -4070 Other Features: Data storage: >10 years Re-write: 100,000 times Craft: Silk printing Application: Access control, attendance control, etc