Features: Control up to 8digital devices with ease using our versatile8-channel RS485 Modbus RTU switch module Our module supports both low and high level input modes, and is compatible withTTL, LvTTL, and othervoltage Designed for electronics hobbyists, engineers, and DIY enthusiasts, our switch module for building custom automation system and remote control projects. With its easy-to-use Modbus RTU control and support for up to 247 devices, our switch module is perfect for home automation, industrial control, and more. Made from durable ABS material, our switch module is reliable in awiderange of applications. Specifications: WorkingVoltage: DC12V (6-24V) Working current: 8-12MA MODBUS RTU 03 06 command control There are two input modes: low level input (default) and high level input The input port supports TTL (5V) LvTTL and compatible Input port status supports querying (default) and automatic reporting The default Baud is 9600BPS, which can be configured to support 1200 2400 4800 19200 Baud Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC RS485 Modbus RTUSwitch Module