People travel to different places with the green pass QR code to get permitted into a building, airports, hospital, etc. The green pass QR code has been widely used in many places. Also the vaccine pass QR code to prove someone gets vaccine or not.

To read the green pass QR code and vaccine pass QR code, It’s necessary to use a handheld terminal that with the function of scanning green pass QR code, and scanning vaccine pass QR code.

Handheld terminal called PDA, data collector, micro computer, handheld computing, and it’s divided into consumer PDA and Industrial PDA according to different uses.

The main difference including IP level, battery volume, decoding ability, etc.

The advantages of handheld terminal:

1. It can storage data, and it has Android operate system

2. Provide SDK, support development

3. Various of wireless communication ways: 4G. WiFi, Bluetooth, etc.

4. Support installing user’s APP and APP data exchange

5. Many modules for optional: Fingerprint module, barcode scanner module, Face recognition module, RFID module, etc.

Different module for different function.

For example: Select barcode scanner module, the PDA will with the function of decoding barcode and transmit the barcode data.

            Select fingerprint module, the PDA will with the function of recognizing people’s fingerprint to identify who this is and collect people’s fingerprints.

In a word, the PDA is a kind of data collecting tool to gather all data to it and operate the data.

Shenzhen Xingtong IOT Technology Co., Ltd.