12V Modbus RTU 4 Channels Relay Module Optocoupler RS485 MCU for Arduino

12V Relay Module 4-Channel This is a 12V 4-Channel Relay interface board. Be able to control various appliances and other equipment with a large current. It can be controlled directly by a Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) . 12V 4-Channel Relay interface board and each one needs 50-60mA Driver Current. Equipped with high-current relay, AC250V 10A ; DC30V 10A. Application: Supports all MCU control. The industrial field. PLC control. Smart home control. Features: .Modbus serial communication Relay switching output Convenient AT command control Specification: Product Name:4 Bit ModbusRTU Relay Module Working Voltage:DC 12V Working Current:1A Work Temperature:-25~85 Work Humidity:5%~95%RH Size:78*78*20mm Package Includes: 1 x 12V Modbus RTU 4 Channels Relay Module