4G Cat1 RS485 Transparent Transmission MQTT Modbus TCP to RTU CDSENET E840-DTU(EC05-485)E Small Size 2-Way Socket Link

E840-DTU (EC05-485)E is a small-sized 4G DTU,using 4G CAT1 technology for use in the Asia-Pacific region, Australia, New Zealand and other regions.
It has small size, high speed, low latency and the shell adopts three-proof coating, which is Anti-Fungal, Anti-Humidity, and Anti-Salt Spray.
It is low cost and easy to use. Simple configuration can realize the serial port device networking function (two-way transparent transmission between the serial port device and the network server).