Dual-ARM Cortex-M3 micro controller 
Reading Range Can't Be Adjustable
High security of resisting disturbance
Adopts frequency Hopping& multi-type address technology, Strong encryption to card info by the unique program encryption technology, data transmitting to reader after multi-type checking way for data processing.
Anti-collision
100pcs RFID Card ID can be read simultaneously.
Low Frequency Activation
With 125K low frequency activation, and which can control the reading range effectively.
Multi-type data output format
With Wigand, RS485 Data format output which can easy to integrate to different access control system.