Features: 1.8inch color screen with three independent serial port enables multiple device parallel communication and visual feedback for complex systems. Lightweight plastic housing ensures durability while small design optimizes space efficiency in industrial control setups. designs for automation engineers, embedded system developers, and technical professional requiring stable multiple protocol integration. Optimizes industrial machinery interfaces, small homes control panel, and laboratory equipment requiring simultaneous serial data streams . High resolution 1.8inch displays delivers and stable performances under continuous operation in demanding environment. Specifications: Component : plastic Size: about 45x86mm/1.77x3.39inch Package Includes: 1xPower Supply note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.