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UART 485/232/TTL
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RS485 Modues & relays
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Wireless RS485/RS232 series 1
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top saler
R217A08 12V 8CH RS232 IO Control Switch Relay PLC Expansion Board DB9 Serial Port PC Com Module For Arduino UNO MEGA NANO
US$4.99
UD48501 VCC Output USB to RS485 programmer
US$5.99
UD68B01 USB to RS485 485 Modbus programmer USB to RS485 Bus Converter Module CH340 SP485 MAX485 for Modbus Relay PLC PTZ
US$2.99
OPTLB03 Industrial Grade RS485 To TTL232 RXD TXD R/D Isolated Communication Surge Protection Module For Arduino PLC ESP8266
US$1.99
RT4AE01 868MHz USB RJ45 UART Serial UART Wireless Data Transceiver Communication
US$29.99
UD23202 12V 5V VCC Output USB to RS232 Converter UART PC COM Serial Port Module for PLC IO HMI MCU PTZ Smart Home Debugging
US$5.99
New Products [more]
23IOA08 NPN Multifunction RS485 Remote IO Module PLC DI-DO expansion Board DIN Rail Box Standard MODBUS RTU Protocol
US$15.99
23IOC24 24 CH NPN Multifunction RS485 Remote IO Module PLC DI-DO expansion Board DIN Rail Box Standard MODBUS RTU Protocol
US$24.99
23IOC24 24 CH NPN Multifunction RS485 Remote IO Module PLC DI-DO expansion Board DIN Rail Box Standard MODBUS RTU Protocol
US$26.98
23IOB16 16 CH NPN Multifunction RS485 Remote IO Module PLC DI-DO expansion Board DIN Rail Box Standard MODBUS RTU Protocol
US$23.99
23IOD32 NPN Multifunction RS485 Remote IO Module PLC DI-DO expansion Board DIN Rail Box Standard MODBUS RTU Protocol
US$32.99
23IOA08 8 CH PNP Multifunction RS485 Remote IO Module PLC DI-DO expansion Board DIN Rail Box Standard MODBUS RTU Protocol
US$15.99
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UART 485/232/TTL
UART 485/232/TTL
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R4D6F20 24V 20DO 2DI 2AI RS485 Switch Digital Analog IO Modbus RTU Relay Module PLC Expanding Board 4-20MA 0-10V Voltage Read
US$39.99
R4D5E32 12V 32Ch DC 12V 24V 20A High Current Ethernet RS485 Relay Module RJ45 Network Port TCP/IP Modbus RTU Board
US$79.99
R4D5E32 12V 32Ch DC 12V 24V 20A High Current Ethernet RS485 Relay Module RJ45 Network Port TCP/IP Modbus RTU Board
US$79.99
R4D5E32 24V 32Ch DC 12V 24V 20A High Current Ethernet RS485 Relay Module RJ45 Network Port TCP/IP Modbus RTU Board
US$79.99
R4D3B16 16CH 12V 10A DIN Rail Box PLC Expansion Board RS485 Modbus RTU Relay Module
US$27.99
R4D3B16 16CH 12V 10A DIN Rail Box PLC Expansion Board RS485 Modbus RTU Relay Module
US$25.99
N438B08 8CH DC 12V RS485 Relay PC UART Serial Port Switch RTU 03 06 16 Function Code DIN Shell Switch Board
US$22.99
N428E02 NEW! 2CH 12V DC RS485 Modbus RTU Relay PC UART Serial Port Switch Board For PLC Camera Industrial Control System LED PTZ
US$4.99
N4D8C12 12V 12CH Digital IO RS485 Relay Module Modbus RTU DIN35 C45 Rail Box For PLC PTZ Configuration
US$29.99
N4D8C12 12V 12CH Digital IO RS485 Relay Module Modbus RTU DIN35 C45 Rail Box For PLC PTZ Configuration
US$27.99
N4D8C12 24V 12CH Digital IO RS485 Relay Module Modbus RTU DIN35 C45 Rail Box For PLC PTZ Configuration
US$27.99
CE040 DC 12V 4 CH RS485 Relay Module Modbus RTU And AT Command Remote Control Switch for PLC PTZ Camera Security Monitoring
US$13.99
N4ROE16 Mini DC 24V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$27.99
N4ROE16 Mini DC 12V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$25.99
N4ROE16 Mini DC 24V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$25.99
N4ROE16 Mini DC 12V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$27.99
N4ROA01 Mini DC 24V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$5.99
N4ROD08 Mini DC 24V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$15.99
N4ROD08 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$16.99
N4ROC04 Mini DC 24V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$9.99
N4ROC04 Mini DC 12V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$10.69
N4ROC04 Mini DC 24V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$10.69
N4ROC04 Mini DC 12V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$9.99
N4ROD08 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$15.99
N4ROB02 Mini DC 24V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$6.99
N4ROB02 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$6.99
N4ROA01 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$5.99
CE035 DC 12V 2 CH RS485 Relay Board UART Serial Port Switch Module Modbus AT Command Control For PLC Smart Home Automated Industry
US$12.99
CE035 DC 12V 2 CH RS485 Relay Board UART Serial Port Switch Module Modbus AT Command Control For PLC Smart Home Automated Industry
US$13.99
R413E16 Core board RS485 Relay 16ch Multifunction NPN PNP IO Control Core Board Modbus Rtu Module
US$6.99
TB440 for R413E16 16ch Relay Board RS485 Relay 16ch Multifunction NPN PNP IO Control Core Board Modbus Rtu Module
US$13.99
R4D8A08 DC 12V 8 Channel RS485 Relay Module Modbus RTU UART Remote Control Switch DIN35 C45 Rail Box for PLC PTZ Camera Security Monito
US$19.99
R4D8A08 DC 12V 8 Channel RS485 Relay Module Modbus RTU UART Remote Control Switch DIN35 C45 Rail Box for PLC PTZ Camera Security Monito
US$17.99
R4D3C32 24V C45 Rail Box DC 32ch DIN35 RS485 Modbus RTU Relay Board 485 Bus Remote Control Switch for LED Motor PLC PTZ Camera Smart
US$49.99
R4D3C32 12V C45 Rail Box DC 32ch DIN35 RS485 Modbus RTU Relay Board 485 Bus Remote Control Switch for LED Motor PLC PTZ Camera Smart
US$49.99
N4DOK32 12V 32ch 03 06 16 Modbus RTU RS485 SPDT Relay Switch Module UART Serial port Module DIN Rail Box PLC IO expanding board
US$39.99
N4DOK32 24V 32ch 03 06 16 Modbus RTU RS485 SPDT Relay Switch Module UART Serial port Module DIN Rail Box PLC IO expanding board
US$39.99
N4D8B08 DC 12V 8I8O Multifunction Modbus RTU Relay Module Support 03 06 16 Function Code RS485 Switch Control Board DIN35 Rail Box
US$16.99
N4D8B08 DC 12V 8I8O Multifunction Modbus RTU Relay Module Support 03 06 16 Function Code RS485 Switch Control Board DIN35 Rail Box
US$17.99
N4D8B08 DC 24V 8I8O Multifunction Modbus RTU Relay Module Support 03 06 16 Function Code RS485 Switch Control Board DIN35 Rail Box
US$16.99
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