Shop 4 channel relay board

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$8.09
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
10% off
$8.09
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
$15.32
Soldered Electronics 333022 4-CHANNEL RELAY BOARD
DigiKey
$15.32
Soldered Electronics 333022 4-CHANNEL RELAY BOARD
DigiKey
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
$8.89
Relay Board, Relay Module 4 Channel With Optocoupler Low Level Expansion Board For 5V/12V/24V(5V)
Amazon.com
$8.89
Relay Board, Relay Module 4 Channel With Optocoupler Low Level Expansion Board For 5V/12V/24V(5V)
Amazon.com
$21.41
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$21.41
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
$483.07
$721.00
Von Duprin 900-4RL Optional Distribution Board, 4 Relay Board Integrated Logicy Board Output
American Locksets
33% off
$483.07
$721.00
Von Duprin 900-4RL Optional Distribution Board, 4 Relay Board Integrated Logicy Board Output
American Locksets
$60.00
USB 4 Channel (10A) Relay Output Module,Board For Home Automation
Amazon.com
$60.00
USB 4 Channel (10A) Relay Output Module,Board For Home Automation
Amazon.com
$14.99
DIANN 30A 4 Channel Relay Module 5V Relay Module Expansion Board High Low Level Trigger With With Optocoupler Isolation For PLC Automation Equipment
Amazon.com
$14.99
DIANN 30A 4 Channel Relay Module 5V Relay Module Expansion Board High Low Level Trigger With With Optocoupler Isolation For PLC Automation Equipment
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$5.99
NOYITO 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 10A For PLC Automation Equipment Control (4-
Amazon.com
$5.99
NOYITO 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 10A For PLC Automation Equipment Control (4-
Amazon.com
$17.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
$17.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
$14.99
Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power
Amazon.com
$14.99
Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power
Amazon.com
$19.99
Geeekpi 4 Channel Relay Board Module For Raspberry Pi, Power Relay Module For Raspberry Pi 4B/3B+/3/2B (No Programming Required/Programmable)
Amazon.com
$19.99
Geeekpi 4 Channel Relay Board Module For Raspberry Pi, Power Relay Module For Raspberry Pi 4B/3B+/3/2B (No Programming Required/Programmable)
Amazon.com
$27.90
Dfrobot FIT0827 INDUSTRIAL 4-CHANNEL RELAY MODUL
DigiKey
$27.90
Dfrobot FIT0827 INDUSTRIAL 4-CHANNEL RELAY MODUL
DigiKey
$17.99
DORHEA ESP32 Wifi 4 Channel Relay Module ESP32-WROOM-32E 4 Channel Development Board AC/DC Power Supply Switch Controller Board For Arduino Smart Home
Amazon.com
$17.99
DORHEA ESP32 Wifi 4 Channel Relay Module ESP32-WROOM-32E 4 Channel Development Board AC/DC Power Supply Switch Controller Board For Arduino Smart Home
Amazon.com
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
$21.49
Socobeta Sequential Control Module, 0.5-4S Time Sequence Board, 4 Channel, 2 Panel, Circuit Relay Module
Amazon.com
$21.49
Socobeta Sequential Control Module, 0.5-4S Time Sequence Board, 4 Channel, 2 Panel, Circuit Relay Module
Amazon.com
$8.79
ABS With Optocoupler DC Output 817 4 Channel Voltage Isolation Board Level Relay Module Relay Module Board For Calibrating
Amazon.com
Free shipping
$8.79
ABS With Optocoupler DC Output 817 4 Channel Voltage Isolation Board Level Relay Module Relay Module Board For Calibrating
Amazon.com
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
$29.90
AUNMAS 4 Channel Multifunction Relay Board Module With Timer, DPDT Switch 8-36V DC, Adjustable Time Delay Relay For Industrial Automation Car
Amazon.com
$29.90
AUNMAS 4 Channel Multifunction Relay Board Module With Timer, DPDT Switch 8-36V DC, Adjustable Time Delay Relay For Industrial Automation Car
Amazon.com
$16.45
Velleman VMA400 4 Channel Relay Module
Amazon.com
Free shipping
$16.45
Velleman VMA400 4 Channel Relay Module
Amazon.com
$1.85
4 Channel 5V Relay Shield Module Four Channel Relay Control Expansion Board
Alibaba B2B
Free shipping
$1.85
4 Channel 5V Relay Shield Module Four Channel Relay Control Expansion Board
Alibaba B2B
$7.13
Arduino Relay Shield 5V 4 Channel Relay Module Four Channel For
eBay
$7.13
Arduino Relay Shield 5V 4 Channel Relay Module Four Channel For
eBay
$8.78
2Pcs 4 Channel 5V Relay Module Control Board With Optoc For ARM PIC AVR DSP. Relay Accessories.
eBay
$8.78
2Pcs 4 Channel 5V Relay Module Control Board With Optoc For ARM PIC AVR DSP. Relay Accessories.
eBay
$4.95
Arduino Compatible 4-Channel DC 5V Relay Module Board. Development Kits & Boards.
eBay
$4.95
Arduino Compatible 4-Channel DC 5V Relay Module Board. Development Kits & Boards.
eBay
$17.05
5V 4-Channel Relay Module Board For Arduino ARM PIC AVR DSP TTL 10A High Power. Relay Accessories. 313057474459.
eBay
Free shipping
$17.05
5V 4-Channel Relay Module Board For Arduino ARM PIC AVR DSP TTL 10A High Power. Relay Accessories. 313057474459.
eBay
$45.11
4-Channel RS485 Relay Board, Modbus RTU Protocol, 30A High Current 7V36V, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case
Amazon.com
Free shipping
$45.11
4-Channel RS485 Relay Board, Modbus RTU Protocol, 30A High Current 7V36V, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case
Amazon.com
$79.99
Gatepi 4 Channel - Lora Based Relay Board 4 Channel Relay With Lora Module Based On Raspberry Pi 2040 Smart Data Transmission Lora Module,
Amazon.com
$79.99
Gatepi 4 Channel - Lora Based Relay Board 4 Channel Relay With Lora Module Based On Raspberry Pi 2040 Smart Data Transmission Lora Module,
Amazon.com
$2.65
4-Channel 12V USB Control Switch Relay Module, Relay Board Computer Smart Switch Controller, PC Relay Module Expansion Board
Alibaba B2B
Free shipping
$2.65
4-Channel 12V USB Control Switch Relay Module, Relay Board Computer Smart Switch Controller, PC Relay Module Expansion Board
Alibaba B2B
$11.12
Esp8266 Wifi 4 Channel Relay Module Ac/Dc Esp-12F Development Board-
eBay
$11.12
Esp8266 Wifi 4 Channel Relay Module Ac/Dc Esp-12F Development Board-
eBay
$3.49
$3.75
4 Channel Relay Shield 5V 4 Ch Relay Shield Board Module For Arduino
eBay
$3.49
$3.75
4 Channel Relay Shield 5V 4 Ch Relay Shield Board Module For Arduino
eBay
$16.99
Cenrykay 2PCS 4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board
Amazon.com
$16.99
Cenrykay 2PCS 4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board
Amazon.com
$18.46
12V 4-Channel Relay Board Module Active Low. Switch Electronics. General Purpose Relays. 5056240300481.
eBay
Free shipping
$18.46
12V 4-Channel Relay Board Module Active Low. Switch Electronics. General Purpose Relays. 5056240300481.
eBay
$20.47
12V 4 Channel Relay Board Module Active Low Terminal Blocks. Switch Electronics. General Purpose Relays. 5063200011653.
eBay
Free shipping
$20.47
12V 4 Channel Relay Board Module Active Low Terminal Blocks. Switch Electronics. General Purpose Relays. 5063200011653.
eBay
$3.35
Four Channel Relay Shield 5V 4 Channel Relay Shield Module For Arduino
eBay
$3.35
Four Channel Relay Shield 5V 4 Channel Relay Shield Module For Arduino
eBay
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
This ice cream is super creamy and so easy to make! Here is how to make these! Ice Cream Ingredients \t•\t2 cups heavy cream \t•\t1 cup whole milk \t•\t3/4 cup sugar \t•\t4 egg yolks \t•\tseeds of 1 vanilla bean \t•\t1/4 tsp salt Instructions In a saucepan combine the heavy cream, milk, vanilla bean seeds, and salt. Heat over medium heat until steaming but not boiling. In a bowl whisk together the sugar and egg yolks until pale. Slowly pour the warm cream mixture into the egg mixture while whisk
1:16
This ice cream is super creamy and so easy to make! Here is how to make these! Ice Cream Ingredients \t•\t2 cups heavy cream \t•\t1 cup whole milk \t•\t3/4 cup sugar \t•\t4 egg yolks \t•\tseeds of 1 vanilla bean \t•\t1/4 tsp salt Instructions In a saucepan combine the heavy cream, milk, vanilla bean seeds, and salt. Heat over medium heat until steaming but not boiling. In a bowl whisk together the sugar and egg yolks until pale. Slowly pour the warm cream mixture into the egg mixture while whisk
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Did DILG chief Jonvic Remulla try to block ‘ex-Marines’ from attending the flood control probe? WATCH: Senator Pia Cayetano and Senator Robin Padilla are walking with the 18 “ex-Marines,” and others on their way to the Senate session hall on June 4, 2026, when they encounter Interior Secretary Jonvic Remulla who was all by himself headed in the opposite direction. A pushing incident happens between Remulla and Padilla in the process. Pia Cayetano would later allege at the hearing that Remulla tr
4:59
Did DILG chief Jonvic Remulla try to block ‘ex-Marines’ from attending the flood control probe? WATCH: Senator Pia Cayetano and Senator Robin Padilla are walking with the 18 “ex-Marines,” and others on their way to the Senate session hall on June 4, 2026, when they encounter Interior Secretary Jonvic Remulla who was all by himself headed in the opposite direction. A pushing incident happens between Remulla and Padilla in the process. Pia Cayetano would later allege at the hearing that Remulla tr
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Shop 4 channel relay board

Sponsored
About our ads
$8.09
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
10% off
$8.09
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
$15.32
Soldered Electronics 333022 4-CHANNEL RELAY BOARD
DigiKey
$15.32
Soldered Electronics 333022 4-CHANNEL RELAY BOARD
DigiKey
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
$8.89
Relay Board, Relay Module 4 Channel With Optocoupler Low Level Expansion Board For 5V/12V/24V(5V)
Amazon.com
$8.89
Relay Board, Relay Module 4 Channel With Optocoupler Low Level Expansion Board For 5V/12V/24V(5V)
Amazon.com
$21.41
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
Free shipping
$21.41
MCU, Relay Module YYG 4 High Power 4 Channel Relay Module Relay Module Control Board Optocoupler Isolation 30A DC 12V, Relays (5VDC)
Amazon.com
$483.07
$721.00
Von Duprin 900-4RL Optional Distribution Board, 4 Relay Board Integrated Logicy Board Output
American Locksets
33% off
$483.07
$721.00
Von Duprin 900-4RL Optional Distribution Board, 4 Relay Board Integrated Logicy Board Output
American Locksets
$60.00
USB 4 Channel (10A) Relay Output Module,Board For Home Automation
Amazon.com
$60.00
USB 4 Channel (10A) Relay Output Module,Board For Home Automation
Amazon.com
$14.99
DIANN 30A 4 Channel Relay Module 5V Relay Module Expansion Board High Low Level Trigger With With Optocoupler Isolation For PLC Automation Equipment
Amazon.com
$14.99
DIANN 30A 4 Channel Relay Module 5V Relay Module Expansion Board High Low Level Trigger With With Optocoupler Isolation For PLC Automation Equipment
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$7.50
Shillehtek 4-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial
Amazon.com
$5.99
NOYITO 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 10A For PLC Automation Equipment Control (4-
Amazon.com
$5.99
NOYITO 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 10A For PLC Automation Equipment Control (4-
Amazon.com
$17.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
$17.99
NOYITO 30A 4 Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load DC 30V AC 250V 30A For PLC Automation Equipment Control,
Amazon.com
$14.99
Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power
Amazon.com
$14.99
Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power
Amazon.com
$19.99
Geeekpi 4 Channel Relay Board Module For Raspberry Pi, Power Relay Module For Raspberry Pi 4B/3B+/3/2B (No Programming Required/Programmable)
Amazon.com
$19.99
Geeekpi 4 Channel Relay Board Module For Raspberry Pi, Power Relay Module For Raspberry Pi 4B/3B+/3/2B (No Programming Required/Programmable)
Amazon.com
$27.90
Dfrobot FIT0827 INDUSTRIAL 4-CHANNEL RELAY MODUL
DigiKey
$27.90
Dfrobot FIT0827 INDUSTRIAL 4-CHANNEL RELAY MODUL
DigiKey
$17.99
DORHEA ESP32 Wifi 4 Channel Relay Module ESP32-WROOM-32E 4 Channel Development Board AC/DC Power Supply Switch Controller Board For Arduino Smart Home
Amazon.com
$17.99
DORHEA ESP32 Wifi 4 Channel Relay Module ESP32-WROOM-32E 4 Channel Development Board AC/DC Power Supply Switch Controller Board For Arduino Smart Home
Amazon.com
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
$21.49
Socobeta Sequential Control Module, 0.5-4S Time Sequence Board, 4 Channel, 2 Panel, Circuit Relay Module
Amazon.com
$21.49
Socobeta Sequential Control Module, 0.5-4S Time Sequence Board, 4 Channel, 2 Panel, Circuit Relay Module
Amazon.com
$8.79
ABS With Optocoupler DC Output 817 4 Channel Voltage Isolation Board Level Relay Module Relay Module Board For Calibrating
Amazon.com
Free shipping
$8.79
ABS With Optocoupler DC Output 817 4 Channel Voltage Isolation Board Level Relay Module Relay Module Board For Calibrating
Amazon.com