Features: The relays module features optocoupler isolation, delivering robust drive capability and stable performances. A 5mA triggering current ensures enhances operational stability. User-friendle port design: The relays module's has been optimised for user convenience: each port can be directly connection via cable, offering exceptionally ease of use. Jumper settings within this relays module type permit triggering of any module via either high or low logics. Selectable operating voltages: Three module variants are available: 5V, 12V, and 24V. This relays module incorporates a unique fault-tolerant design. Even if the control line is disconnected, it remaining stationary, thereby preventing certain malfunctions. Specifications: Component：Circuit Board Process: High and low triggering design, bidirectional optocoupler isolation, ensuring stable transmission Parameters: 1-channel relays module, suitable for driver Size: 26x50mm/1.02x1.96in Standard development board accessories size Option: 5V 12V 24V Package Includes: 1PC 1-channel relays module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.