Quantity: 1 - Color: Green + red - Material: Plastic + metal - Features: RFID reader supporting modules - Specification: RDM630 RFID reader module - Operating voltage: 5V - Operating current: <50mA - Frequency: 125KHz - Baud Rate: 9600 - Interface Type: TTL level RS232 format - Reception range: 20mm~50mm (depending on the antenna and the card) - RFID reader module can read 125K EM4100 Series RFID card; The module is easy to use Arduino motherboard serial connection energized when RFID card into the card reader range the module through the UART directly to the card number sent to the Arduino; Then relay module is connected Arduino simple access control can be achieved - The dedicated module RDM630 series of non-contact RF ID card preclude the use of advanced RF receiver circuits and embedded microcontroller design combined with efficient decoding algorithms to complete the EM4100 compatible ID card data reception; Receiver sensitivity high operating current high stability - Suitable for access control time and attendance charges anti-theft Patrol and other radio frequency identification applications - English Manual/Spec: YES - A product for Arduino that works with official Arduino boards - Packing List: - 1 x Card reader module - 1 x Copper coil - 1 x Software CD (Including English user manual) CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.206725.zip