Features: This TTL to RS485 converters module enables bidirectional signal conversion (5V/3 V TTL-RS485) with industrial isolation protections , ensuring reliable data transmission in EMIs heavy environment. Features 3 V 5.5V wide voltages input, real time RXDs/TXD status LEDs, compactly design, and robusts antiinterference capabilities for seamlessly industrial communication integration. Ideal for automation engineers, embedde system developers, and industrial equipment technicians requiring stable serial communication solution. Perfect for motor controls systems, sensors networking, and PLC communication in factories, power stations, or transportation infrastructure with complex electromagnetic conditions. Design as essential industrial communication component, this isolated UART module combines safety certifieds isolation technology with plugs and play connectivities for modern automation upgrades. Specifications: Component:Plastic Size:Approx.36.07x29.08mm/1.44x1.17inch Option Type:1pc,2pcs; Package Includes: Package A 1pc TTL to RS485 Module Package B 2pc TTL to RS485 Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.