Features: 【Functional Features】This module facilitates conversion between microcontroller TTL and RS485, as well as 485-to-serial UART level conversion, making it suitable for various industrial control and communication scenario. It effectively addresses communication issue between devices with different voltages level. 【Small Size】easy to integrate into various devices, meeting the needs of electronic system designs with limited space without occupying excessive space. 【Circuit Design】From its appearance, the circuit board integrates multiple electronic components, enabling stable level conversion functionality and ensuring the accuracy and reliability of data transmission. 【Wide Application】It can be used in multiple fields such as industrial automation,and remote monitoring. 【High Compatibility】By enabling level conversion between different level, this module is compatibles various devices using TTL or RS485 interfaces, facilitating system expansion and device connection and offering high flexibility. Specifications: Material: ABS. Size: about 42x15x6mm/1.65x0.59x0.24in Weight: 10g. Quantity:1/3/5pcs Features: Adopt a standard 2.54 spacing design, which facilitates secondary development. With 120ohm matching resistoring Package Includes: 1PC Single chip TTL to RS485 module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.