Features: Card Reader supports protocols, seamlessly reading various cards while fully fit mobile and cards for access control. Engineered with chips and isolation technology, this module delivers precise cloning, fast response time, and industrial grade durability ( 40℃~85℃). Ideal for security integrators, property managers, and enterprises requiring card access solution for employee attendance tracking or restricted area management. Use this device in office buildings, factories, or educational campuses for batch card programming, door access authorization, and secure credential verification. Features customizable encoding, and compact modulars design with LED indicators, enabling effortless integration into ARM/PC systems via UART interfaces. Specifications: Component: ABS, Metal Size: about. 14x8x4cm/4.72x3.14x1.57in Pattern: 3 pattern optional Package Includes: 1 Set Access Control Reader note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.