Free SDK to integrate your POS System with the E420

Android
Easy to implement API for all the E420 peripherals


  • Card Reader MSR, EMV, NFC
  • PIN on Glass PIN Pad with Signature Capture
  • Manual Data Entry
  • Customer display
  • PIN Pad communicates with payment processor direct so no gateway required  
  • Supports Semi-integration so POS is out of PCI scope and removes the POS from PCI/EMV compliance
  • Cash Drawer
  • USB Bar Code Reader
  • Camera
  • Printer

The E420 Solution

The future is the Electronic Cash Register (ECR), an Android tablet-based POS that combines POS and Payment functions on a single, ergonomic, cost-effective all-in-one design. The E420 Storefront ECR converts previously cluttered checkout areas into clean organized area and provides all the POS functions a small business needs.  We are the authorized reseller of PAX hardware and Sound Payment’s cloud services.

As a new generation ECR with Android 6.0 system, the E420 accepts any payment method, including card payments -magnetic, chip and contactless, and works with all the major US payment processors.


  • Credit, Debit and Gift card acceptance, adds QR payment, mobile wallet, and cash
  • Dual camera for QR code and bar code scanning
  • Receipt printing
  • Communications, including WiFi, Bluetooth, and 3G/4G

Seamless Transaction
Battery capacity is the weakness of an ECR. The E420, inbuilt massive capacity battery of 2600mAh, can keep working more than 1 hour without power supply to guarantee faster and  more efficient transaction even in peak time.

Sample code
Evaluation Program

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