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5V 4-Channel Relay Module with Optocoupler Isolation, 4 Way Relay Switch Board Compatible with AVR, 51, PIC Microcontroller Development Projects
- Model #: TECH CABIN - TCH262
- $18.49 –
- Free Shipping

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8-CH Ethernet Relay Module (B) with Digital Input, Modbus RTU/Modbus TCP Protocol, Support DC 7~36V Wide Range Power Input and PoE Power Supply, with Various Isolation and Protection Circuits
Limited time offer, ends 08/09
- Model #: C5Z9-Lsy724-291
- $119.94 –
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8-CH Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE Port Communication, with Various Isolation and Protection Circuits
Limited time offer, ends 08/09
- Model #: C5Z9-Lsy724-293
- $102.66 –
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8 Channel Network Relay Module Remote Control Relay Device Ethernet to RS485 TCP Relay Module
- Model #: 694782986661
- $109.99 –
- $5.99 Shipping

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4-Channel RS485 Relay Board, Modbus RTU Protocol, 30A High Current 7V~36V, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case
- Model #: XM728-C7FT-273
- $90.22 –
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8-CH Relay Module via Ethernet with Digital Input, Adopt Modbus RTU/Modbus TCP Protocol, Supports PoE Power Supply/DC Power Port/Screw Terminal/DC 7~36V Wide Range Power Input
Limited time offer, ends 08/09
- Model #: C745-Lsy715-182
- $89.39 –
- Free Shipping

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4-Channel RS485 Relay Board, Modbus RTU Protocol, 30A High Current 7V~36V, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case
Limited time offer, ends 08/09
- Model #: C5Z9-Lsy724-302
- $89.22 –
- Free Shipping

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Global Caché IP2CC-P iTach TCP/IP to Contact Closure Converter with Power Over Ethernet - Connects Relay Devices to a Wired Connection
- Model #: CLOLB002ZV8FVI
- $252.99 –
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Power Relay Expansion Module for Raspberry Pi, Relay Board with Dual Cooling Fans & Auto Color Changing LED, Compatible with Pi A+, 3A+, B+, 2B, 3B, 3B+, 4B
- Model #: TECH CABIN - TCH188
- $18.54 –
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WebRelay Remote Accessible Ethernet Relay and Digital Input Module (9-28 VDC Power Supply Required ^^ X-WR-1R12-1I-I)
- Model #: 118107880149
- $298.99 –
- Free Shipping

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3-CH RPi Relay Board RPi Expansion Board, Three Channel Power Relay Module Compatible with Raspberry Pi 5/4B/3B+/3B/Pi Zero W/Zero 2W/Pico/Pico W/Pico 2/Pico 2W, Loads up to 5A 250V AC or 5A 30V DC
Limited time offer, ends 08/09
- Model #: C5Z9-Lsy724-162
- $37.40 –
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2 Channel Serial Port Relay Module DC 12V PC Computer USB RS232 DB9 RS485 UART Remote Control Switch Board for Smart Home (4)
- Model #: CLAWB0C1GK6Q6Q
- $76.59 –
- More options from $76.59 - $77.99
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Raspberry Pi Power Relay Expansion Module with Dual Cooling Fans & Auto Color Changing LED, Relay Board for Pi A+ 3A+ B+ 2B 3B 3B+ 4B
- Model #: TECH CABIN - TCH415
- $18.54 –
- Free Shipping

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Power Relay Expansion Module for Raspberry Pi, Relay Board with Dual Cooling Fans & Auto Color Changing LED, Compatible with Pi A+, 3A+, B+, 2B, 3B, 3B+, 4B
- Model #: TECH CABIN - TCH185
- $18.54 –
- Free Shipping

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Industrial 6-Channel RP2350 Relay Module, Onboard RS485/Pico HAT Interfaces, Compatible with Raspberry Pi Pico Hats, Expanding RTC/CAN / RS232 / LoRa/Sensor, RS485,etc. Multi Protection Circuits
Limited time offer, ends 08/09
- Model #: C5Z9-Lsy724-398
- $73.86 –
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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
- Model #: Kepler-C72J-0478
- $48.97 –
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5V 4-Channel Relay Module with Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
- Model #: C7FW0626-JIA-150
- $13.99 –
- Free Shipping

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Pinhaijing LAN Ethernet 2 Way Relay Board Delay Switch TCP/UDP Controller Module Web Server
- Model #: 652843010113
- $52.99 –
- $5.99 Shipping

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VAREQOY Modbus POE ETH Relay 8-CH Ethernet Relay Module Supports Sending Modbus RTU/Modbus TCP Protocol Commands via Ethernet Port to Control Relay and Various Devices
- Model #: G3F1C783-XM6151806
- $131.99 –
- Free Shipping

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DEVMO 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power Compatible with Ar-duino DIY Kit PiC ARM AVR
- Model #: 884945151344
- $49.78 –
- More options from $43.99 - $49.78
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