Handheld PDA is a portable handheld device with multiple functions such as computing, photo taking, data collection, telephony, network, communication, bluetooth, storage, positioning, etc., which is characterized by security, reliability and high stability . Handheld PDA devices are now widely used in industrial production data collection industry. In the new era of data informatization, the use of handheld PDA devices can quickly improve the efficiency of data information management and data collection.

According to its features and functions, more and more enterprises introduce handheld PDA devices to improve work efficiency. Each handheld terminal has a key display touch parts, that is LCD touch screen. Handheld PDA devices are now widely used in logistics, express delivery, retail, manufacturing, medical institutions, public utilities, government administration and other fields.