Will support you for ever, check Support method from: HERE
1. For concurrent reading, use the usb-rs232 cable connect between reader and computer, use the correct software tool, please check below video:
https://www.youtube.com/watch?v=0nqXe57LJmg&feature=youtu.be
2. For the SDK and sample code package, please download from:
https://beseencontrol.com/R2000-320-UHF.zip
I will support you for ever with my nearly 20 years experience.
1. If you prefer email, I will do email support.
2. If you want phone support, I can call you( Please tell me your phone number)
3. Also can do teamviewer support to remotely connect to your computer to guide you, to provide live training and support for you.