Shop 4 channel relay board

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$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
432
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
432
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4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
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4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
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Yitouniu 4 Channel Tuya Smart Life Wifi Momentary Inching Relay Self-Locking Switch Module,AC 85-250V/USB 5V Wifi RF Bluetooth Relay, Compatible With
Amazon.com
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Yitouniu 4 Channel Tuya Smart Life Wifi Momentary Inching Relay Self-Locking Switch Module,AC 85-250V/USB 5V Wifi RF Bluetooth Relay, Compatible With
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4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
81
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4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
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Securitron RB-4-12 Relay Board 4 DPDT Relays 12V 2 AMP Contacts
B and H Depot
$107.00
Securitron RB-4-12 Relay Board 4 DPDT Relays 12V 2 AMP Contacts
B and H Depot
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SS VISION 4 Gang Wireless Switch Panel, 12V 60A Auxiliary Car Swtich Panel, Universal Circuit Control Relay System Box With 4 Light Modes Memory
Amazon.com
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SS VISION 4 Gang Wireless Switch Panel, 12V 60A Auxiliary Car Swtich Panel, Universal Circuit Control Relay System Box With 4 Light Modes Memory
Amazon.com
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$1,585.00
QSC MP-M40 Four Zone Mixer Zone Mixer With 4 Mic/Line Input Channels, 4 Line Input Channels, 4 Output Zones, USB, And Mobile Apps
Sweetwater
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Sweetwater
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$161.95
MSD Ignition 4-Channel Relay Module
JEGS High Performance
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$145.75
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MSD Ignition 4-Channel Relay Module
JEGS High Performance
$18.99
5Pcs 5V 4 Channel Relay Module Compatible With Arduino And ARM Boards
Evalm
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5Pcs 5V 4 Channel Relay Module Compatible With Arduino And ARM Boards
Evalm
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Dieserc 4 Channels Wireless Relay Remote Control Switch 433Mhz RF AC 110V 120V 220V 240V 10A Relay Receiver With 2 Transmitters Keyfob, Big Terminal
Amazon.com
91
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Dieserc 4 Channels Wireless Relay Remote Control Switch 433Mhz RF AC 110V 120V 220V 240V 10A Relay Receiver With 2 Transmitters Keyfob, Big Terminal
Amazon.com
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$111.00
$164.00
Securitron RB-4-24 Relay Board 4 DPDT Relays 24V 2 AMP Contacts
B and H Depot
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$111.00
$164.00
Securitron RB-4-24 Relay Board 4 DPDT Relays 24V 2 AMP Contacts
B and H Depot
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AIHJCNELE 2Pcs 5V 4 Channel Solid State Relay Module Low Level Trigger 2A 240W DIY Relay With Fuse SSR G3MB-202P DC Control AC Relay Development Board
Amazon.com
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AIHJCNELE 2Pcs 5V 4 Channel Solid State Relay Module Low Level Trigger 2A 240W DIY Relay With Fuse SSR G3MB-202P DC Control AC Relay Development Board
Amazon.com
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Geekcreit® 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit For Arduino - Products That Work With Official
Banggood
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$9.99
Geekcreit® 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit For Arduino - Products That Work With Official
Banggood
$899.00
Airmar Technologies Smartboat - 4 Input, 4 Binary SW / 4 Relay / No CAN2 Or Serial | By West Marine
WestMarine
Free shipping
$899.00
Airmar Technologies Smartboat - 4 Input, 4 Binary SW / 4 Relay / No CAN2 Or Serial | By West Marine
WestMarine
Free shipping
$3.49
$6.79
1PCS 5V 4 Channel Relay Module With Optocoupler Relay Output 4 Way Relay Module For Arduino Relays
Aliexpress
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$6.79
1PCS 5V 4 Channel Relay Module With Optocoupler Relay Output 4 Way Relay Module For Arduino Relays
Aliexpress
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Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
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Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
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$5.66
Dc 5V 4 Channel Ssr G3mb-202P Solid State Relay Module For Arduino
eBay
$5.32
$5.66
Dc 5V 4 Channel Ssr G3mb-202P Solid State Relay Module For Arduino
eBay
$2.16
5V Four 4 Channel Relay Module With Optocoupler For Pic Avr Dsp Arm
eBay
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eBay
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Msd 7566-4 Four Channel Relay Module
Walmart
9
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Msd 7566-4 Four Channel Relay Module
Walmart
9
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1-5PCS 4 Channel Relay Board AVR 51 PIC 5V 12V 4-Channel Relay Module With Optocoupler Relay 4 Way
Aliexpress
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1-5PCS 4 Channel Relay Board AVR 51 PIC 5V 12V 4-Channel Relay Module With Optocoupler Relay 4 Way
Aliexpress
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5V 4 Channel Relay Module For Arduino Compatible With PIC ARM DSP AVR MSP430 - 2 Pack
Evalm
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5V 4 Channel Relay Module For Arduino Compatible With PIC ARM DSP AVR MSP430 - 2 Pack
Evalm
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12V 4 Channel Delay Relay Driving Module IR Infrared Receiver Board + 5 Key Remote Control Self-Lock Interlock Inching Switch
Alibaba B2B
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12V 4 Channel Delay Relay Driving Module IR Infrared Receiver Board + 5 Key Remote Control Self-Lock Interlock Inching Switch
Alibaba B2B
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Tuya Smart Relay Board Module 12V 24V 2Ch 1Ch 4Ch Dry Contact 1 2 4
eBay
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Tuya Smart Relay Board Module 12V 24V 2Ch 1Ch 4Ch Dry Contact 1 2 4
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4 Channel Relay Timer Board
eBay
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4 Channel Relay Timer Board
eBay
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Zmart 5 V 4 Way Relay Module For Arduino Opto Coupler Relay With Output 4 Channel Relay Module
Everymarket INC
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Zmart 5 V 4 Way Relay Module For Arduino Opto Coupler Relay With Output 4 Channel Relay Module
Everymarket INC
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4 Channel 5V 12V 24V Relay Module With Optocoupler Isolation Supporting High And Low Level Triggering Red Board
Alibaba B2B
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4 Channel 5V 12V 24V Relay Module With Optocoupler Isolation Supporting High And Low Level Triggering Red Board
Alibaba B2B
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Allen-Bradley 700-N400A1 Industrial Control Relay, 4 N.O., Ser B
PLCHardware.com
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Allen-Bradley 700-N400A1 Industrial Control Relay, 4 N.O., Ser B
PLCHardware.com
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5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
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5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
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Sainsmart 4-Channel 5V USB Relay Module For Automation Robotics USA
SainSmart.com
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Sainsmart 4-Channel 5V USB Relay Module For Automation Robotics USA
SainSmart.com
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DC 5V 12V 24V 4 Channel Pro Mini PLC Board Relay Shield Module For Arduiuo Delay Timer Switch
Aliexpress
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DC 5V 12V 24V 4 Channel Pro Mini PLC Board Relay Shield Module For Arduiuo Delay Timer Switch
Aliexpress
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$538.00
$800.00
Schlage Electronics 900-4RL Optional Distribution Board 4 Relay Board Integrated Logic For Controlling Security Interlocks Auto Operators And Time Delays
B and H Depot
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$538.00
$800.00
Schlage Electronics 900-4RL Optional Distribution Board 4 Relay Board Integrated Logic For Controlling Security Interlocks Auto Operators And Time Delays
B and H Depot
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Sainsmart 4-Channel 5V USB Relay Module For Automation Robotics USA
SainSmart.com
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Sainsmart 4-Channel 5V USB Relay Module For Automation Robotics USA
SainSmart.com
$7.19
4 Channel 12V Relay Module 250V 10A Relays For Arduino, Automation &
eBay
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4 Channel 12V Relay Module 250V 10A Relays For Arduino, Automation &
eBay
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$24.52
Relay Module 4 Channel Dc 5V Relay Shield Module Control Board With Optocoupler For Raspberry Pi Arduino Uno R3 Mega Pro
Everymarket INC
$24.52
Relay Module 4 Channel Dc 5V Relay Shield Module Control Board With Optocoupler For Raspberry Pi Arduino Uno R3 Mega Pro
Everymarket INC
$25.74
4 Channel Relay Module, 4 Channel Relay Board 5 V Relay Module With Optocoupler High & Low Trigger Module For 5 V/12 V/2
Everymarket INC
$25.74
4 Channel Relay Module, 4 Channel Relay Board 5 V Relay Module With Optocoupler High & Low Trigger Module For 5 V/12 V/2
Everymarket INC
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Relay Module Wifi 4 Channel ESP8266 Development Board Voltage Monitoring Relay Industrial Parts For Wireless Control DC7
Banggood
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Relay Module Wifi 4 Channel ESP8266 Development Board Voltage Monitoring Relay Industrial Parts For Wireless Control DC7
Banggood
4-Channel Relay Driver Circuit and PCB Design
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4 Channel Relay Module Breakout Board (5V) - ThinkRobotics
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SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM
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How to Test a Four Terminal Relay
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Configurable Active High or Low Relay Module, with opto-isolated input
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Shop 4 channel relay board

Sponsored
About our ads
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
432
$8.99
Sainsmart 4-Channel Relay Module
Amazon.com
432
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
8
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
8
$22.99
Yitouniu 4 Channel Tuya Smart Life Wifi Momentary Inching Relay Self-Locking Switch Module,AC 85-250V/USB 5V Wifi RF Bluetooth Relay, Compatible With
Amazon.com
$22.99
Yitouniu 4 Channel Tuya Smart Life Wifi Momentary Inching Relay Self-Locking Switch Module,AC 85-250V/USB 5V Wifi RF Bluetooth Relay, Compatible With
Amazon.com
$16.99
4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
81
$16.99
4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
Amazon.com
81
$107.00
Securitron RB-4-12 Relay Board 4 DPDT Relays 12V 2 AMP Contacts
B and H Depot
$107.00
Securitron RB-4-12 Relay Board 4 DPDT Relays 12V 2 AMP Contacts
B and H Depot
$39.99
$44.90
SS VISION 4 Gang Wireless Switch Panel, 12V 60A Auxiliary Car Swtich Panel, Universal Circuit Control Relay System Box With 4 Light Modes Memory
Amazon.com
Free shipping
10% off
$39.99
$44.90
SS VISION 4 Gang Wireless Switch Panel, 12V 60A Auxiliary Car Swtich Panel, Universal Circuit Control Relay System Box With 4 Light Modes Memory
Amazon.com
Free shipping
$1,585.00
QSC MP-M40 Four Zone Mixer Zone Mixer With 4 Mic/Line Input Channels, 4 Line Input Channels, 4 Output Zones, USB, And Mobile Apps
Sweetwater
$1,585.00
QSC MP-M40 Four Zone Mixer Zone Mixer With 4 Mic/Line Input Channels, 4 Line Input Channels, 4 Output Zones, USB, And Mobile Apps
Sweetwater
$145.75
$161.95
MSD Ignition 4-Channel Relay Module
JEGS High Performance
10% off
$145.75
$161.95
MSD Ignition 4-Channel Relay Module
JEGS High Performance
$18.99
5Pcs 5V 4 Channel Relay Module Compatible With Arduino And ARM Boards
Evalm
$18.99
5Pcs 5V 4 Channel Relay Module Compatible With Arduino And ARM Boards
Evalm
$23.99
Dieserc 4 Channels Wireless Relay Remote Control Switch 433Mhz RF AC 110V 120V 220V 240V 10A Relay Receiver With 2 Transmitters Keyfob, Big Terminal
Amazon.com
91
$23.99
Dieserc 4 Channels Wireless Relay Remote Control Switch 433Mhz RF AC 110V 120V 220V 240V 10A Relay Receiver With 2 Transmitters Keyfob, Big Terminal
Amazon.com
91
$111.00
$164.00
Securitron RB-4-24 Relay Board 4 DPDT Relays 24V 2 AMP Contacts
B and H Depot
32% off
$111.00
$164.00
Securitron RB-4-24 Relay Board 4 DPDT Relays 24V 2 AMP Contacts
B and H Depot
$12.99
AIHJCNELE 2Pcs 5V 4 Channel Solid State Relay Module Low Level Trigger 2A 240W DIY Relay With Fuse SSR G3MB-202P DC Control AC Relay Development Board
Amazon.com
$12.99
AIHJCNELE 2Pcs 5V 4 Channel Solid State Relay Module Low Level Trigger 2A 240W DIY Relay With Fuse SSR G3MB-202P DC Control AC Relay Development Board
Amazon.com
$3.99
$9.99
Geekcreit® 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit For Arduino - Products That Work With Official
Banggood
60% off
$3.99
$9.99
Geekcreit® 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit For Arduino - Products That Work With Official
Banggood
$899.00
Airmar Technologies Smartboat - 4 Input, 4 Binary SW / 4 Relay / No CAN2 Or Serial | By West Marine
WestMarine
Free shipping
$899.00
Airmar Technologies Smartboat - 4 Input, 4 Binary SW / 4 Relay / No CAN2 Or Serial | By West Marine
WestMarine
Free shipping
$3.49
$6.79
1PCS 5V 4 Channel Relay Module With Optocoupler Relay Output 4 Way Relay Module For Arduino Relays
Aliexpress
48% off
$3.49
$6.79
1PCS 5V 4 Channel Relay Module With Optocoupler Relay Output 4 Way Relay Module For Arduino Relays
Aliexpress
$11.99
Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
$11.99
Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi Canada
SainSmart.com
$5.32
$5.66
Dc 5V 4 Channel Ssr G3mb-202P Solid State Relay Module For Arduino
eBay
$5.32
$5.66
Dc 5V 4 Channel Ssr G3mb-202P Solid State Relay Module For Arduino
eBay
$2.16
5V Four 4 Channel Relay Module With Optocoupler For Pic Avr Dsp Arm
eBay
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5V Four 4 Channel Relay Module With Optocoupler For Pic Avr Dsp Arm
eBay