The 2.4G connection of the wireless barcode scanner is a private protocol technology designed for short-range wireless communication, usually through a USB receiver (similar to a wireless mouse/keyboard) with a host device (e.g., computer, POS machine, etc.) for data transmission. The following is a detailed description of its working principle and features.

• Fundamentals of 2.4GHz wireless technology

RF module:

The scanner has a built-in 2.4 GHz RF transmitter that sends decoded data over radio waves.

The USB receiver (similar to a USB flash drive) acts as the RF receiver and is plugged into the computer or end device to receive the signal and convert it to USB data.
Channel Hopping:Some high-end devices support Adaptive Frequency Hopping (AFH), which dynamically switches between multiple frequencies to minimize interference from Wi-Fi or Bluetooth.

• Connectivity and Pairing Process

- On first use, the scanner and receiver are usually pre-paired (factory paired) and can be used directly by plugging in the receiver.

- To re-pair, synchronization is triggered by specific buttons on the scanner or by scanning a pairing code.

• Data transmission characteristics

Low Latency:The transmission delay is usually 1-5ms, which is close to the response speed of wired connection.

Transmission distance:Theoretical distance is about 10-100 meters (in practice, it is affected by environmental interference, and the open environment can be more than 50 meters).

Anti-interference ability:Adopt private protocol and encryption technology (such as AES 128-bit encryption) to avoid data interception.

• Typical application scenarios

Warehousing and logistics: Long distance scanning (e.g. high shelves) and fast response time.

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Retail Checkout: Dense equipment environment at the checkout counter to avoid Bluetooth channel congestion.

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Production Line Quality Control: Industrial environments with high anti-interference requirements.

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With 2.4GHz wireless technology, the scanner strikes a balance between flexibility, speed and stability, making it an efficient and reliable data transmission solution for industrial, retail and other scenarios.