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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]
ETROA01 12V 1DI 1DO 3 IN 1 Serial Serve/Ethernet/RS485 Relay Module Modbus RTU TCP/IP UART DI-DO Network Controller Switch PLC Remote IO Board
US$13.99
ETVOD08 24V 8CH NPN DI Digital Analog Ethernet Remote I/O Modules Modbus RTU TCP/IP MQTT Network Controller 4-20MA 0-10V DAC Output Board
US$35.99
ETROA01 12V 1DI 1DO 3 IN 1 Serial Serve/Ethernet/RS485 Relay Module Modbus RTU TCP/IP UART DI-DO Network Controller Switch PLC Remote IO Board
US$12.99
ETROA01 24V 1DI 1DO 3 IN 1 Serial Serve/Ethernet/RS485 Relay Module Modbus RTU TCP/IP UART DI-DO Network Controller Switch PLC Remote IO Board
US$12.99
NTROA02 24V 2AI-2DO NTC Relay RS485 RS232(TTL) Analog Digital Modbus Rtu Remote IO Module Temperature Input Relay Output NTROA02 Board
US$5.99
ETROA01 24V 1DI 1DO 3 IN 1 Serial Serve/Ethernet/RS485 Relay Module Modbus RTU TCP/IP UART DI-DO Network Controller Switch PLC Remote IO Board
US$13.99
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UART 485/232/TTL
UART 485/232/TTL
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DM18C04 4 bit 1.8 inch RS485 Modbus Rtu Digital Tube LCD LED Display Module DC 12V 24V for PLC HMI Temperature Humidity Sensor Digital Analog
US$25.99
N4DVB32 5V 32-AI RS485 Differential Voltage Collector Modbus RTU 0-5V 0-10V Analog Input ADC Signal Acquisition System DC 12V 24V
US$25.99
AMROD08 8RO Relay Module DC 12V-24V RS485 MODBUS RTU Isolated Communication Digital Output PLC Board
US$24.99
N4DVB32 10V 32-AI RS485 Differential Voltage Collector Modbus RTU 0-5V 0-10V Analog Input ADC Signal Acquisition System DC 12V 24V
US$24.99
25IOB16 16DI-16DO NPN to PNP RS485 Modbus Rtu Remote IO Module DC 12-24V 300MA DMOS PNP High Level Output for PLC LED Smart Home IOT
US$23.99
25IOB16 16DI-16DO PNP to PNP RS485 Modbus Rtu Remote IO Module DC 12-24V 300MA DMOS PNP High Level Output for PLC LED Smart Home IOT
US$23.99
N4AIB16 22CH 4-20MA Current & 2CH 0-30V Voltage Input RS485 AI Module 24CH 12-bit ADC Collector Board MODBUS RTU PLC IO
US$23.99
N4A8I16 4AI-4VI -4DI -16DO 24CH Digital Analog Mixed Acquisition Module RS485 Remote I/O Module 0-20MA 4-20MA 0-10V 0-30V Current Voltage ADC Collector
US$23.99
N4A7K16 7AI-1VI -4DI -16DO 24CH Digital Analog Mixed Acquisition Module RS485 Remote I/O Module 0-20MA 4-20MA 0-10V 0-30V Current Voltage ADC Collector
US$23.99
AMPTI04 4CH -40~300 Celsius PT100 RTD Temperature Sensor Collector Module RS485 Analog Read Modbus RTU PLC Expanding Board
US$23.99
N4DVB32 5V 32-AI RS485 Differential Voltage Collector Modbus RTU 0-5V 0-10V Analog Input ADC Signal Acquisition System DC 12V 24V
US$23.99
N223B08 DC12V 8CH 2 IN 1 RS232/TTL232 PC UART Relay Module Serial Pport Remote Control Switch For PLC Camera Industrial Control System
US$22.99
N438B08 8CH DC 12V RS485 Relay PC UART Serial Port Switch RTU 03 06 16 Function Code DIN Shell Switch Board
US$22.99
AMDOC16 DC 12V 24V 16DO RS485 Isolated Communication Switch Digital Output MODBUS RTU PLC Expansion Board
US$22.99
AMDSG08 8 DS18B20 temperature acquisition module / RS485 MODBUS RTU communication replace WP3066ADAM
US$22.99
N4AIB16 22CH 4-20MA Current & 2CH 0-30V Voltage Input RS485 AI Module 24CH 12-bit ADC Collector Board MODBUS RTU PLC IO
US$21.99
N4A7K16 7AI-1VI -4DI -16DO 24CH Digital Analog Mixed Acquisition Module RS485 Remote I/O Module 0-20MA 4-20MA 0-10V 0-30V Current Voltage ADC Collector
US$21.99
N4A8I16 4AI-4VI -4DI -16DO 24CH Digital Analog Mixed Acquisition Module RS485 Remote I/O Module 0-20MA 4-20MA 0-10V 0-30V Current Voltage ADC Collector
US$21.99
R421A08 8 CH DC 12V RS485 Relay Module Modbus RTU 485 Remote Control Switch For PLC PTZ Camera
US$21.99
R4HUB08 1xRS485 to 8xRS485 1/8 Port Industrial Gateway Serial Server RJ45 to RS485 HUB Converter UDP TCP Modbus TCP RTU MQTT HTTP PLC
US$21.99
ETAIC04 12V 4CH NPN DI Digital Analog Ethernet Remote I/O Modules Modbus RTU TCP/IP MQTT Network Controller 4-20MA 0-10V DAC Output Board
US$21.99
ETAIC04 24V 4CH NPN DI Digital Analog Ethernet Remote I/O Modules Modbus RTU TCP/IP MQTT Network Controller 4-20MA 0-10V DAC Output Board
US$21.99
RYN408F 12V 8CH Relay Pluggable Modbus Remote IO Module Baud Rate Slave ID Dip Switch Selection Easy To Use Multi-function Switch Board
US$21.99
RYN408F 24V 8CH Relay Pluggable Modbus Remote IO Module Baud Rate Slave ID Dip Switch Selection Easy To Use Multi-function Switch Board
US$21.99
PTA8D08 -40℃ to +220℃ 8AI RS485 Analog Input PT100 RTD RS485 Temperature Sensor Acquisition Module replace NTC K Thermocouple DS18B20
US$21.99
PTA8D08 -40℃ to +500℃ 8AI RS485 Analog Input PT100 RTD RS485 Temperature Sensor Acquisition Module replace NTC K Thermocouple DS18B20
US$21.99
RYR408B With Din Rail Easy Setup 24V 8 Channels Modbus Relay Board IOT RS485 Network PC UART Industrial Control Switch Module for PLC HMI TP PTZ
US$20.99
RYR408B With Din Rail Easy Setup 12V 8 Channels Modbus Relay Board IOT RS485 Network PC UART Industrial Control Switch Module for PLC HMI TP PTZ
US$20.99
UD23A08 5V Multifunction USB RS232 TTL UART Relay Module 8CH PC MCU Control Switch For Motro LED PTZ PLC IPC
US$19.99
UD23A08 24V V Multifunction USB RS232 TTL UART Relay Module 8CH PC MCU Control Switch For Motro LED PTZ PLC IPC
US$19.99
UD23A08 12V Multifunction USB RS232 TTL UART Relay Module 8CH PC MCU Control Switch For Motro LED PTZ PLC IPC
US$19.99
R4DB908 2 in 1 RS485 RS232 DB9 8DO Module Modbus Rtu 3A NPN Mos Optocoupler Isolation Output Solid State Relay for LED Motor PLC PTZ Can
US$19.99
RT4AE01 VHF/UHF Radio Modem 433M/RS485/RS232/USB Wireless Transceiver Serial Data Long-Distance Transmission Module
US$19.99
RT4AE01 VHF/UHF Radio Modem 868M/RS485/RS232/USB Wireless Transceiver Serial Data Long-Distance Transmission Module
US$19.99
RT4AE01 VHF/UHF Radio Modem 868M RS232/USB Wireless Transceiver Serial Data Long-Distance Transmission Module
US$19.99
RT4AE01 VHF/UHF Radio Modem 433M RS232/USB Wireless Transceiver Serial Data Long-Distance Transmission Module
US$19.99
RT4AE01 VHF/UHF Radio Modem 868M RS232/USB Wireless Transceiver Serial Data Long-Distance Transmission Module
US$19.99
RT4AE01 VHF/UHF Radio Modem 433M RS232/USB Wireless Transceiver Serial Data Long-Distance Transmission Module
US$19.99
N4RFA04 Relay RT5BF01 DC24V 433M Wireless RS485 IO Point-to-Point Master-Slave RF Transceiver Relay Swicth Board for Water Pump LED PTZ PLC
US$19.99
N4RFA04 Relay RT5BF01 DC 12V 433M Wireless RS485 IO Point-to-Point Master-Slave RF Transceiver Relay Swicth Board for Water Pump LED PTZ PLC
US$19.99
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