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5V 4 Channel Relay Module High And Low Level Trigger With Opto Isolation

235.54 (Excluding All Taxes)
  • 5V 4 Channel Relay Module Board with Optocoupler Isolation Support High and Low Level Trigger
  • Work Voltage: 5VDC
  • Low Level Trigger Current: 0-1.5V
  • High Level Trigger Current: 3-5V

5V 4Channel Relay Module With Modbus RTU Input Optocoupler Isolation

526.23 (Excluding All Taxes)
  • 5V Modbus RTU 4, Channels Relay Module, Input Optocoupler, Isolation RS485 MCU for, Arduino
  • Product Name:4 Bit ModbusRTU Relay Module
  • Working Voltage: DC 5V
  • Work Temperature:-25℃~85℃

7 To 24V 4 Channel Relay Module With Modbus RTU – RS485/TTL Anti-Reverse Connection

729.23 (Excluding All Taxes)
  • 7-24V Modbus RTU 4, Channels Relay Module, RS485/TTL Anti-Reverse, Connection
  • Communication protocol: Modbus RTU protocol
  • Communication interface: Support RS485 / TTL UART interface
  • No. of Channel: 4