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Modbus RTU 4 Channel Relay Module with RS485/TTL UART, 1 Input 1 Output, 7-24V Anti-Reverse Protection for Industrial Home Automation
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  • $12.99 
  • Free Shipping
8-CH Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits
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  • $102.66 
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Modbus-Rtu 7-24V 4 Channel Relay Module Switch Modbus RTU Switch Input Output 5V RS485 TTL Communication Anti-Reverse Connection
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  • $12.99 
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CyberPower RELAYIO500 Network-Management Card device & server
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  • $251.99 
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anicorn 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board
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  • $48.97 
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12V Dual Way Bluetooth Relay Module 12V 10A Wireless Smart Relay Module IoT Smart Home Phone APP Remote Control Switch
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  • $12.99 
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Teltonika PR313AU3 AU Power Supply; 130W; for use with TSW100 Industrial Unmanaged PoE Switch
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  • $135.99 
  • $5.99 Shipping