Swipe Card Reader ACR-31


ACR-31 Swipe Card Reader

first of all combines card reader functionality and mobility, so enabling you to access secure applications anytime, anywhere. similarly Compact and stylish, as a result this card reader supports demanding applications that use magnetic stripe cards.

ACR-31 Features:

  • 3.5mm Audio Jack Interface
  • Powered by a CR2016 battery
  • Reads up to two tracks of card data (Track 1 / Track 2)
  • Capable of bidirectional reading
  • Supports AES128 encryption algorithm
  • Supports DUKPT Key Management System
  • Magnetic Card Reader:
    • Supports ISO 7810 / 7811 magnetic cards
    • Hi-Coercivity and Low-Coercivity magnetic cards
    • JIS1 and JIS2

Spectification ACR-31


  • 39.7mm (L) x 46.0mm (W) x 18.0mm (H)


  • 3.5mm 4-pole audio jack
  • USB Full Speed

Power Source

  • CR2016 battery

Supply Voltage

  • 2.3 to 3 V DC

Supply Current

  • 5 mA

Operating Temperature

  • 0-50°C

Card Swipe Cycles

  • Min. 500,000

Card Swipe Speed

  • Max. 10 IPS (inches per second)

Magnetic Stripe Card Support

  • ISO7810 / ISO7811 Hi-Co and Low-Co Magnetic Cards
  • JIS1 and JIS2

Smart Card Interface Support

  • ISO 7816 Class A, B and C
  • Microprocessor cards with T=0 and T=1 protocol
  • Memory cards

Operating System Support

  • Android™ 2.0 and above
  • iOS 5.0 and above


  • 1 Year Warranty


Driver for ACR-31

Serial Interface OS Support
Android Driver
Version 1.0.0
Android 2.0 and above

iOS Driver
Version 1.0.0
iOS 5.0 and above


Manual for ACR-31

Technical Specification
Technical Specification of ACR-122S Smart Card Reader Reference Manual
Reference Manual of ACR-122S Smart Card Reader

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