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€66.29
Serial Port Relay Module 8 Way Serial Port Control Relay Module RS232 Computer Controlled Relay
Grandado.com - IRL
Free shipping
€66.29
Serial Port Relay Module 8 Way Serial Port Control Relay Module RS232 Computer Controlled Relay
Grandado.com - IRL
€1.37
€4.16
5V 1 2 4 6 8 Channel Relay Module With Optocoupler KY-019 1/2/4/6/8 Way For Arduino
AliExpress
67% off
€1.37
€4.16
5V 1 2 4 6 8 Channel Relay Module With Optocoupler KY-019 1/2/4/6/8 Way For Arduino
AliExpress
€14.69
€23.39
Relay Module 2 Channel USB To CH340 Serial Control Relay Module
Onbuy.com IE
37% off
€14.69
€23.39
Relay Module 2 Channel USB To CH340 Serial Control Relay Module
Onbuy.com IE
€2.30
€3.73
5V 1 2 4 8 Channel Relay Module With Optocoupler.Output X Way For Arduino 1CH 2CH 4CH 8CH
AliExpress
38% off
€2.30
€3.73
5V 1 2 4 8 Channel Relay Module With Optocoupler.Output X Way For Arduino 1CH 2CH 4CH 8CH
AliExpress
€0.88
€1.25
1 2 4 6 8 Channel Relay Module Board Shield With Optocouple High And Low Level Trigger For Arduino
AliExpress
29% off
€0.88
€1.25
1 2 4 6 8 Channel Relay Module Board Shield With Optocouple High And Low Level Trigger For Arduino
AliExpress
€8.33
€8.99
8 Channel 12V 24V Relay Shield Module RS485 PLC IO Expanding Board For Arduino NANO V3.0
AliExpress
Free shipping
€8.33
€8.99
8 Channel 12V 24V Relay Shield Module RS485 PLC IO Expanding Board For Arduino NANO V3.0
AliExpress
€2.92
€5.85
USB Serial Port Control 1 Channel Relay Module 5V 10A CH340 Overcurrent Protection Computer Command
AliExpress
50% off
€2.92
€5.85
USB Serial Port Control 1 Channel Relay Module 5V 10A CH340 Overcurrent Protection Computer Command
AliExpress
€4.31
€12.73
DC 5V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Optocoupler LM2576
AliExpress
66% off
€4.31
€12.73
DC 5V 16 Channel Relay Module For Arduino ARM PIC AVR DSP Electronic Relay Optocoupler LM2576
AliExpress
€1.10
€1.31
1 2 4 8 Channel 5V DC Relay Module Solid State High Level SSR AVR DSP G3MB-202P Relay For Arduino
AliExpress
16% off
€1.10
€1.31
1 2 4 8 Channel 5V DC Relay Module Solid State High Level SSR AVR DSP G3MB-202P Relay For Arduino
AliExpress
€341.87
€416.92
4X R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board For PLC LED Home Door Lock
Onbuy.com IE
Free shipping
18% off
€341.87
€416.92
4X R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board For PLC LED Home Door Lock
Onbuy.com IE
€509.43
€621.26
6X R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board For PLC LED Automation Door Lock
Onbuy.com IE
Free shipping
18% off
€509.43
€621.26
6X R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board For PLC LED Automation Door Lock
Onbuy.com IE
€12.12
5V 4 Channel Relay Shield Module For Arduino UNO R3 ARM PIC AVR DSP Electronic 4 Way Four Channel Relay Control Expansion Board
coolbe.ie
Free shipping
€12.12
5V 4 Channel Relay Shield Module For Arduino UNO R3 ARM PIC AVR DSP Electronic 4 Way Four Channel Relay Control Expansion Board
coolbe.ie
€16.62
Taidacent DC12V 24V 8 Channel Relay Module 8 Way Input 8 Way Output Modbus RTU 8-Channel Relay Module RS485 TTL UART Relay
Alibaba B2B
Free shipping
€16.62
Taidacent DC12V 24V 8 Channel Relay Module 8 Way Input 8 Way Output Modbus RTU 8-Channel Relay Module RS485 TTL UART Relay
Alibaba B2B
€3.72
Arduino - Grove Relay, HLS8L - GRV RELAY1
Reichelt Irland
€3.72
Arduino - Grove Relay, HLS8L - GRV RELAY1
Reichelt Irland
€12.98
Relay Module Solid State DC 5V Relay Module With Optocoupler For Arduino Raspberry Pi 8Channel
coolbe.ie
Free shipping
€12.98
Relay Module Solid State DC 5V Relay Module With Optocoupler For Arduino Raspberry Pi 8Channel
coolbe.ie
€11.58
Relay Module Solid State DC 5V Relay Module With Optocoupler For Arduino Raspberry Pi 2Channel
coolbe.ie
Free shipping
€11.58
Relay Module Solid State DC 5V Relay Module With Optocoupler For Arduino Raspberry Pi 2Channel
coolbe.ie
€34.78
Huaqingjun 8-Channel RS485 232 Ethernet IO RJ45 Relay Module 24V Modbus RTU/TCP RS232 LAN Network For Contactors
Alibaba B2B
Free shipping
€34.78
Huaqingjun 8-Channel RS485 232 Ethernet IO RJ45 Relay Module 24V Modbus RTU/TCP RS232 LAN Network For Contactors
Alibaba B2B
€9.80
Relay Module Solid State DC 5V Relay Module With Optocoupler For Arduino Raspberry Pi 4Channel
coolbe.ie
Free shipping
€9.80
Relay Module Solid State DC 5V Relay Module With Optocoupler For Arduino Raspberry Pi 4Channel
coolbe.ie
€8.84
Developer Boards - Relay Module, 8 Channel, 5 V, SRD-05VDC-SL-C - DEBO RELAIS 8CH
Reichelt Irland
€8.84
Developer Boards - Relay Module, 8 Channel, 5 V, SRD-05VDC-SL-C - DEBO RELAIS 8CH
Reichelt Irland
€19.99
Communication Module 1.8V 2.5V 3.3V 5V USB To UART Serial Adapter For DIY
Grandado.com - IRL
Free shipping
€19.99
Communication Module 1.8V 2.5V 3.3V 5V USB To UART Serial Adapter For DIY
Grandado.com - IRL
€2.58
Developer Boards - Relay Module, 1 Channel, 5 V - DEBO RELAIS 1CH
Reichelt Irland
€2.58
Developer Boards - Relay Module, 1 Channel, 5 V - DEBO RELAIS 1CH
Reichelt Irland
€0.89
€0.97
Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield With Optocoupler Support High And
AliExpress
€0.89
€0.97
Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield With Optocoupler Support High And
AliExpress
€26.05
Raspberry Pi - Relay Module, 8 Channel, DIN Rail, HLS8L-DC5V-S-C - RPI RELAIS 8CH
Reichelt Irland
€26.05
Raspberry Pi - Relay Module, 8 Channel, DIN Rail, HLS8L-DC5V-S-C - RPI RELAIS 8CH
Reichelt Irland
€10.85
Developer Boards - Relay Module, 8-Channel, 5 V, SRD-05VDC-SL-C - DEBO RELAIS2 8CH
Reichelt Irland
€10.85
Developer Boards - Relay Module, 8-Channel, 5 V, SRD-05VDC-SL-C - DEBO RELAIS2 8CH
Reichelt Irland
€6.09
4 Channel Relay Board DC 12V DB9 RS232 Remote Control UART Serial Port Switch For Car Motor
Alibaba B2B
Free shipping
€6.09
4 Channel Relay Board DC 12V DB9 RS232 Remote Control UART Serial Port Switch For Car Motor
Alibaba B2B
€26.57
Dc7-38V Maximum Load 250V 10A 16-Channel Serial Relay Module Usb Power
eBay DE
Free shipping
€26.57
Dc7-38V Maximum Load 250V 10A 16-Channel Serial Relay Module Usb Power
eBay DE
€19.12
Developer Boards - Relay Module, 16-Channel, 12 V - DEBO RELAIS 16CH
Reichelt Irland
€19.12
Developer Boards - Relay Module, 16-Channel, 12 V - DEBO RELAIS 16CH
Reichelt Irland
€37.07
Dc7-38V Maximum Load 250V 10A 16-Channel Serial Relay Module Usb Power
eBay DE
Free shipping
€37.07
Dc7-38V Maximum Load 250V 10A 16-Channel Serial Relay Module Usb Power
eBay DE
€11.99
Arduino - Grove Relay SPDT, 30 A, SLA-05VDC-SL-C - GRV RELAY SPDT30
Reichelt Irland
€11.99
Arduino - Grove Relay SPDT, 30 A, SLA-05VDC-SL-C - GRV RELAY SPDT30
Reichelt Irland
€12.17
8-Channel 5V Relay Module Control Board 12V Small Multiple Relay Module Plc Output Amplifier Board Electromagnetic Relay Sealed
Alibaba B2B
Free shipping
€12.17
8-Channel 5V Relay Module Control Board 12V Small Multiple Relay Module Plc Output Amplifier Board Electromagnetic Relay Sealed
Alibaba B2B
€18.99
€23.39
4 Channel 5V Relay Expansion Board Relay Shield V1.3
Grandado.com - IRL
Free shipping
18% off
€18.99
€23.39
4 Channel 5V Relay Expansion Board Relay Shield V1.3
Grandado.com - IRL
€22.68
10Pcs 1 Channel 12V Relay Module For Arduino
coolbe.ie
Free shipping
€22.68
10Pcs 1 Channel 12V Relay Module For Arduino
coolbe.ie
€2.25
G3MB-202P 5V DC 1 Channel Solid-State Relay Board Module For Arduino High Level Fuse For Arduino SSR
AliExpress
€2.25
G3MB-202P 5V DC 1 Channel Solid-State Relay Board Module For Arduino High Level Fuse For Arduino SSR
AliExpress
€31.68
Esp32 Dc 5V Relay 4 Channel Relay Module Iot Relay W/ Downloader
eBay DE
€31.68
Esp32 Dc 5V Relay 4 Channel Relay Module Iot Relay W/ Downloader
eBay DE
€25.25
Seeit TTL-RELAY08 Relay For Relay Control Card For Arduino, AVR, PIC, Raspberry Pi, TTL, TTL-RELAY08-5V
RS Ireland
€25.25
Seeit TTL-RELAY08 Relay For Relay Control Card For Arduino, AVR, PIC, Raspberry Pi, TTL, TTL-RELAY08-5V
RS Ireland
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