With the rapid development and popularization of Internet of Things technology, more and more devices and sensors need to collect and transmit data to realize the monitoring, control and management of devices. This requires an efficient, reliable, and safe data transmission device to realize communication and data transmission between IoT devices. 4G-DTU (Data Transmission Unit) WiFi Wireless Module is a device specially designed for IoT data transmission. It has high-speed, stable and secure data transmission capabilities and can meet the needs of various IoT application scenarios. 4G-DTU is a data transmission device based on 4G network, which can collect and process the data of various sensors and equipment, and then carry out remote transmission and control through 4G network. Compared with traditional DTU, 4G-DTU has higher speed and stability, which can realize real-time data transmission and remote control. Advantages of 4G-DTU 1. High speed and stability: Due to the adoption of the latest 4G communication technology, 4G-DTU can achieve high-speed and stable data transmission, and can realize data transmission in a high-speed mobile environment without being affected by environmental interference. 2. Safe and reliable: 4G-DTU adopts multiple encryption algorithms and security protocols to ensure the safety and reliability of data during transmission and storage. 3. Easy to manage: 4G-DTU can be remotely monitored and managed through the cloud, and device updates and maintenance can also be carried out through the cloud, making device management easier and more convenient. 4. Flexible application: 4G-DTU can be used in various industrial automation fields and can meet different data transmission requirements.