Shop Projects for a 4 Relay Module

Sponsored
About our ads
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$21.99
Yitouniu 4CH Wireless Relay Module | Smart Home Control | Remote Switch | Self-Locking Mode | Tuya APP & Bluetooth Compatible
Amazon.com
11
$21.99
Yitouniu 4CH Wireless Relay Module | Smart Home Control | Remote Switch | Self-Locking Mode | Tuya APP & Bluetooth Compatible
Amazon.com
11
$80.00
Relay Output Module: 4-pt, 6-48 VDC/6-208 VAC (PN# F0-04TRS)
Automation Direct
$80.00
Relay Output Module: 4-pt, 6-48 VDC/6-208 VAC (PN# F0-04TRS)
Automation Direct
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$3.70
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
Aliexpress
$3.70
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
Aliexpress
$3.51
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
$3.51
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$1.46
$2.43
4-Channel Relay Module 5V/12V/24V - Optocoupler Isolation, High/Low Level Trigger
Aliexpress
Free shipping
39% off
$1.46
$2.43
4-Channel Relay Module 5V/12V/24V - Optocoupler Isolation, High/Low Level Trigger
Aliexpress
Free shipping
$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
$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$4.90
$14.84
4 8 Channel 5V 12V 24V Relay Module Trigger Board TCPIP Network Relay Module Switch LAN Control
Aliexpress
Free shipping
66% off
$4.90
$14.84
4 8 Channel 5V 12V 24V Relay Module Trigger Board TCPIP Network Relay Module Switch LAN Control
Aliexpress
Free shipping
$2.40
12V Relay 1 2 4 8 Channel SSR High Low Level Solid State Relay Module 250V 2A For Arduino 5V Relay
Aliexpress
Free shipping
$2.40
12V Relay 1 2 4 8 Channel SSR High Low Level Solid State Relay Module 250V 2A For Arduino 5V Relay
Aliexpress
Free shipping
$4.45
1PCS 1/2/4 Channel 3V 5V 12V Relay Module Board 3.3V Low Level Shooting With Lamp
Aliexpress
$4.45
1PCS 1/2/4 Channel 3V 5V 12V Relay Module Board 3.3V Low Level Shooting With Lamp
Aliexpress
$4.13
$8.58
4-Channel 5V Relay Module With Optocoupler, Compatible With Arduino R3, AVR, STM32, PIC, ARM
Aliexpress
51% off
$4.13
$8.58
4-Channel 5V Relay Module With Optocoupler, Compatible With Arduino R3, AVR, STM32, PIC, ARM
Aliexpress
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$2.70
$3.00
1Pcs New 4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For
Aliexpress
$2.70
$3.00
1Pcs New 4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For
Aliexpress
$2.60
5V 4-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 4 Channel Relay.4 Road 5V
Aliexpress
$2.60
5V 4-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 4 Channel Relay.4 Road 5V
Aliexpress
$1.74
$3.50
1/2/4/8 Channel Relay Module With Optocoupler 5V/12V/24V High/Low Level Trigger For Arduino PLC Home
Aliexpress
50% off
$1.74
$3.50
1/2/4/8 Channel Relay Module With Optocoupler 5V/12V/24V High/Low Level Trigger For Arduino PLC Home
Aliexpress
$1.05
$1.26
5V/12V 4-Channel Relay Module - Opto-Isolated Relay Shield For Arduino, ARM, PIC, AVR, DSP &
Aliexpress
16% off
$1.05
$1.26
5V/12V 4-Channel Relay Module - Opto-Isolated Relay Shield For Arduino, ARM, PIC, AVR, DSP &
Aliexpress
$0.59
$0.66
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
Free shipping
10% off
$0.59
$0.66
5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
Free shipping
$0.20
$0.40
5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 Way Relay Module For Arduino
Aliexpress
Free shipping
50% off
$0.20
$0.40
5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 Way Relay Module For Arduino
Aliexpress
Free shipping
$1.62
1PCS 1 2 4 8 Channel 5V 12V 24V Relay Module Board With Optocoupler Support High And Low Level
Aliexpress
$1.62
1PCS 1 2 4 8 Channel 5V 12V 24V Relay Module Board With Optocoupler Support High And Low Level
Aliexpress
$1.65
1 2 4 6 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$1.65
1 2 4 6 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$2.20
4 Way Relay Module AVR 51 PIC 5V 12V Expansion Board With Optocoupler Relay 4 Way Relay Module
Aliexpress
$2.20
4 Way Relay Module AVR 51 PIC 5V 12V Expansion Board With Optocoupler Relay 4 Way Relay Module
Aliexpress
$2.70
$3.00
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
Aliexpress
$2.70
$3.00
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino
Aliexpress
$3.70
5V 4 Channel Relay Shield Module For Arduino UNO R3 Mega2560 Electronic 4 Way Four Channel Relay
Aliexpress
$3.70
5V 4 Channel Relay Shield Module For Arduino UNO R3 Mega2560 Electronic 4 Way Four Channel Relay
Aliexpress
$3.25
1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED
Aliexpress
$3.25
1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED
Aliexpress
$1.78
$3.52
1/2/4/6/8 Channel Relay Module With Optocoupler 5V/12V/24V Relay Module With Indicator Light For
Aliexpress
49% off
$1.78
$3.52
1/2/4/6/8 Channel Relay Module With Optocoupler 5V/12V/24V Relay Module With Indicator Light For
Aliexpress
$1.37
1 2 4 8 Channel 5V 12V Relay Switch Module Board Shield W/Optocoupler 5V 12V 24V Support High And
Aliexpress
$1.37
1 2 4 8 Channel 5V 12V Relay Switch Module Board Shield W/Optocoupler 5V 12V 24V Support High And
Aliexpress
$0.52
$0.58
5V 12V1 2 4 6 8 Channel Relay Module With Optocoupler Relay Output 1 2 4 6 8 Way Relay Module For
Aliexpress
10% off
$0.52
$0.58
5V 12V1 2 4 6 8 Channel Relay Module With Optocoupler Relay Output 1 2 4 6 8 Way Relay Module For
Aliexpress
$1.97
Relay Module 1 2 4 6 8 Channel 5V 12V 24V Relay Module Board With Optocoupler Support High And Low
Aliexpress
$1.97
Relay Module 1 2 4 6 8 Channel 5V 12V 24V Relay Module Board With Optocoupler Support High And Low
Aliexpress
$6.50
$9.29
DC 5V 12V Wifi Relay Module 4 Channel ESP8266 ESP-01 Wireless Relay Switch Board 4 Way Phone APP
Aliexpress
30% off
$6.50
$9.29
DC 5V 12V Wifi Relay Module 4 Channel ESP8266 ESP-01 Wireless Relay Switch Board 4 Way Phone APP
Aliexpress
$4.55
$5.69
DC 5V/12V/24V 4 Channel 30A Output Relay Module High And Low Level Trigger Relay Module For Home PLC
Aliexpress
20% off
$4.55
$5.69
DC 5V/12V/24V 4 Channel 30A Output Relay Module High And Low Level Trigger Relay Module For Home PLC
Aliexpress
$0.47
$0.94
3V 1 2 4 Channel Relay Module Board Low-Level Trigger With Light Relay Output 1 2 4 Way Relay Module
Aliexpress
50% off
$0.47
$0.94
3V 1 2 4 Channel Relay Module Board Low-Level Trigger With Light Relay Output 1 2 4 Way Relay Module
Aliexpress
$1.57
5V 1 2 4 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 8 Way Relay Module For Arduino
Aliexpress
$1.57
5V 1 2 4 8 Channel Relay Module With Optocoupler. Relay Output 1 2 4 8 Way Relay Module For Arduino
Aliexpress
5 Top New Science Project Ideas for School - Easy Science Project Compilation
18:10
5 Top New Science Project Ideas for School - Easy Science Project Co…
2M viewsMar 12, 2024
YouTubeBeginner Life
15 Awesome Science Project Ideas
1:10
15 Awesome Science Project Ideas
1.3M viewsDec 26, 2023
YouTubeScience Buddies
Top 30 Science Project Ideas
2:08
Top 30 Science Project Ideas
422.2K viewsJan 1, 2024
YouTubeScience Buddies
20 Great Science Project Ideas (with instructions!)
1:30
20 Great Science Project Ideas (with instructions!)
213.5K viewsDec 28, 2023
YouTubeScience Buddies
15 Best Science Projects - Our Scientists' Picks
2:21
15 Best Science Projects - Our Scientists' Picks
6M viewsSep 30, 2019
YouTubeScience Buddies
13 Great Arduino Project Ideas for Beginners!!!
6:10
13 Great Arduino Project Ideas for Beginners!!!
681.6K viewsApr 25, 2023
YouTubeToP Projects Compilation
Top 20 Arduino Projects for 2025: Science Exhibition & DIY Ideas!
3:19
Top 20 Arduino Projects for 2025: Science Exhibition & DIY Ideas!
597.1K views10 months ago
YouTubeRoboarmy
9:25
15 Brilliant IoT Projects for Beginners!
1M viewsJan 8, 2023
YouTubeToP Projects Compilation
9:00
Arduino Projects - 12 GREAT Ideas for you!!!
407.4K viewsSep 20, 2023
YouTubeToP Projects Compilation
2:25
30 Creative Final Year Projects with Source Code || Final Year Project I…
380.6K viewsFeb 14, 2024
YouTubeIT DESIGNERS
8:38
12 NEW Raspberry Pi Projects you must try!!!
566.4K viewsJun 14, 2023
YouTubeToP Projects Compilation
3:58
Top 5 Raspberry Pi DIY Projects of All Time
1M viewsMay 12, 2020
YouTubeNewegg Studios
10:36
Top 10 DIY Electronics Engineering Projects
387.2K viewsJun 19, 2021
YouTubeNevon Projects
4:14
10 Genius Scrap Wood Projects You’ll Actually Want to Make
77.2K views6 months ago
YouTubeHomedit ®
9:36:53
Build 25 React Projects – Tutorial
704K viewsFeb 5, 2024
YouTubefreeCodeCamp.org
1:09
Top 10 High School Science Projects
167.8K viewsJul 22, 2024
YouTubeScience Buddies
9:00
Top 10 Mechanical Projects Ideas 2023 | DIY Mechanical Engineerin…
309K viewsMay 6, 2023
YouTubeNevon Projects
7:50
12 New AI Projects using Raspberry-Pi, Jetson Nano & more
1.1M viewsJul 25, 2023
YouTubeToP Projects Compilation
58:47
Top 10 Electronics Projects with Basic Components
419.2K views3 months ago
YouTubeSoldering Tech
47:59
100 Woodworking Projects (SELL THESE PROJECTS!)
171.7K views11 months ago
YouTubeFish Over Chicks Woodworking
7:16
5 Projects for a Data Analyst Job | All Materials Included
400.4K viewsJan 21, 2023
YouTubecodebasics
2:28
TOP 5 Winning SCIENCE fair projects 2023 you have never see…
283.9K viewsAug 8, 2023
YouTubeTecH BoyS ToyS
11:02
Top 5 Data Analytics Projects with Resources to Get a JOB | Project…
219.1K viewsSep 23, 2023
YouTubeRishabh Mishra
10:11
Top 10 Agricultural Engineering Projects 2023 | Modern Farming Pr…
542.4K viewsApr 19, 2023
YouTubeNevon Projects
21:41
Top 10 Arduino projects
1.3M viewsNov 9, 2020
YouTubeMr Innovative
12:15
I made the most complicated science fair project for students 🔥🔥 | …
1M viewsMay 3, 2021
YouTubeTecH BoyS ToyS
14:27
20 Programming Projects That Will Make You A God At Coding
2.4M viewsMay 23, 2024
YouTubeThe Coding Sloth
19:24
Top 10 Simple School Science Project Ideas for Science Exhibitio…
9.5M viewsNov 22, 2019
YouTubeHow to Raju
0:52
10 Awesome Physics Science Projects
881.6K viewsJul 10, 2023
YouTubeScience Buddies
33:10
10 Easy Sewing projects, Scrap Fabric Ideas, Craft Compilation Vi…
1.4M viewsJul 10, 2021
YouTubeDainty Diaries
4:30
Top 10 Arduino Projects from 2024 | for all skill levels
107.1K viewsOct 26, 2024
YouTubeDanovation
30:14
3 Easy To Make Woodworking Projects That Sell | DIY Gifts
1M viewsDec 3, 2021
YouTubeWalkers Woodworks & DIY
53:00
Python Projects for Beginners – Master Problem-Solving! 🚀
595.1K viewsSep 10, 2024
YouTubeProgramming with Mosh
0:41
10 Awesome Chemistry Science Projects
521.8K viewsAug 21, 2023
YouTubeScience Buddies
0:53
10 Awesome Biology Science Projects
209.7K viewsSep 12, 2023
YouTubeScience Buddies
1:19
10 Best 6th Grade Science Projects
299.2K viewsDec 17, 2023
YouTubeScience Buddies
4:04
Top 10 arduino projects 2024 | Arduino projects for beginners | A…
1.1M viewsMar 27, 2024
YouTubeSimple Circuits
18:46
Amazing Solar Power Irrigation System Project Model for school s…
1.7M viewsSep 6, 2023
YouTubeInventus
40:59
10 easy sewing projects compilation! ( Scrap fabric friendl…
1.5M viewsJun 30, 2022
YouTubeDainty Diaries
11:59:34
HTML CSS JS projects (Beginner): 30 projects using HTML CSS and …
639.3K viewsApr 8, 2024
YouTubeJavaScript King
6:48
Top 7 Electrical Engineering Projects 2022 | DIY Electrical Ideas
258.7K viewsAug 10, 2022
YouTubeNevon Projects
7:54
Top 10 Raspberry Pi Projects for 2022
1.7M viewsFeb 28, 2022
YouTubeJeff Geerling
9:24
Top 10 Arduino Projects 2020 | Awesome Idea for winning Scienc…
1.8M viewsJul 26, 2020
YouTubeTecH BoyS ToyS
8:13
15 Best Arduino Sensor Projects for 2025!
62.6K views9 months ago
YouTubeTHE ELECTRONIC GUY
13:16
Top 12 Electronics Projects 2023 | Electronics Engineering Project Id…
330.7K viewsJun 23, 2023
YouTubeNevon Projects
31:34
DIY Woodworking: 7 Unique Projects You Haven't Seen Before
5.7M viewsMay 9, 2023
YouTubeTotally Handy
5:01
Amazing Best top 5 national winning Projects | inspire Award Project 20…
953.6K viewsNov 2, 2022
YouTubeHarish Projects
7:12
Top 10 IoT Projects 2022 | Useful IoT Devices | Smart IoT Projects | IoT …
717.1K viewsOct 28, 2020
YouTubeSimplilearn
10:30
Top 10 Robotics Projects for Students and Engineers | DIY Rob…
99.7K viewsSep 14, 2023
YouTubeNevon Projects
14:04
22 Machine Learning Projects That Will Make You A God At Data Scie…
334.1K views9 months ago
YouTubeInfinite Codes
8:52
Top 7 Useful Arduino Projects | DIY Arduino Ideas 2022
143.7K viewsMay 16, 2022
YouTubeNevon Projects
5:20
6 Great Raspberry Pi 5 Projects to try in 2025!
170.4K viewsAug 30, 2024
YouTubeToP Projects Compilation
3:38
30 Best High School Science Projects
76.9K viewsJun 12, 2024
YouTubeScience Buddies
21:13
How To Use Zoho Projects | All-In-One Online Project Management S…
64.2K viewsDec 14, 2021
YouTubeStewart Gauld
33:56
30 DIY Projects Absolutely Anyone Can Do
8.3M viewsJun 1, 2018
YouTubeHomedit ®
10:31
Top 10 Mechatronics Engineering projects Ideas 2022
123.6K viewsApr 21, 2022
YouTubeNevon Projects
3:42
7 innovative sustainable city projects to make cities more susta…
65.6K viewsMar 31, 2021
YouTubeEcoMastery Project
7:05
Top 10 Arduino Projects to Learn in 2025
7.9K views9 months ago
YouTubeDanovation
15:22
10 DIY Home Projects Under 30 Minutes Each!
213.5K viewsApr 2, 2024
YouTubeClutterbug
6:29
Types of Projects - Project Types - Project Management - Different Ty…
63K viewsApr 10, 2020
YouTubeProject Management WES
See more videos
Static thumbnail place holder

Shop Projects for a 4 Relay Module

Sponsored
About our ads
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$9.99
ANMBEST 2PCS 4 Channel 5V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board For Raspberry Pi Arduino
Amazon.com
196
$21.99
Yitouniu 4CH Wireless Relay Module | Smart Home Control | Remote Switch | Self-Locking Mode | Tuya APP & Bluetooth Compatible
Amazon.com
11
$21.99
Yitouniu 4CH Wireless Relay Module | Smart Home Control | Remote Switch | Self-Locking Mode | Tuya APP & Bluetooth Compatible
Amazon.com
11
$80.00
Relay Output Module: 4-pt, 6-48 VDC/6-208 VAC (PN# F0-04TRS)
Automation Direct
$80.00
Relay Output Module: 4-pt, 6-48 VDC/6-208 VAC (PN# F0-04TRS)
Automation Direct
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$15.99
Hosyond 4Pack 4 Channel DC 5V Relay Module With Optocoupler Relay Board For Arduino Raspberry Pi MEGA2560
Amazon.com
53
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$1.72
$1.85
3V 3.3V 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 4 Way Relay Module For
Aliexpress
$3.70
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
Aliexpress
$3.70
5V 4 Way Relay Module For Arduino 4 Channel Relay Module With Optocoupler Relay Output For Arduino
Aliexpress
$3.51
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
$3.51
4 Channel Optocoupler Relay Module Board High & Low Trigger Relay Module 5V/12V/24V
Aliexpress
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$22.99
GAEYAELE 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V DC/AC Interface Relay Module(FY-T734-12VACDC)
Amazon.com
140
$1.46
$2.43
4-Channel Relay Module 5V/12V/24V - Optocoupler Isolation, High/Low Level Trigger
Aliexpress
Free shipping
39% off
$1.46
$2.43
4-Channel Relay Module 5V/12V/24V - Optocoupler Isolation, High/Low Level Trigger
Aliexpress
Free shipping
$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
$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$8.99
AEDIKO 2Pcs DC 5V Relay Module 4 Channel Relay Board Shield With Optocoupler Isolation Suport High/Low Level Trigger
Amazon.com
58
$4.90
$14.84
4 8 Channel 5V 12V 24V Relay Module Trigger Board TCPIP Network Relay Module Switch LAN Control
Aliexpress
Free shipping
66% off
$4.90
$14.84
4 8 Channel 5V 12V 24V Relay Module Trigger Board TCPIP Network Relay Module Switch LAN Control
Aliexpress
Free shipping
$2.40
12V Relay 1 2 4 8 Channel SSR High Low Level Solid State Relay Module 250V 2A For Arduino 5V Relay
Aliexpress
Free shipping
$2.40
12V Relay 1 2 4 8 Channel SSR High Low Level Solid State Relay Module 250V 2A For Arduino 5V Relay
Aliexpress
Free shipping
$4.45
1PCS 1/2/4 Channel 3V 5V 12V Relay Module Board 3.3V Low Level Shooting With Lamp
Aliexpress
$4.45
1PCS 1/2/4 Channel 3V 5V 12V Relay Module Board 3.3V Low Level Shooting With Lamp
Aliexpress
$4.13
$8.58
4-Channel 5V Relay Module With Optocoupler, Compatible With Arduino R3, AVR, STM32, PIC, ARM
Aliexpress
51% off
$4.13
$8.58
4-Channel 5V Relay Module With Optocoupler, Compatible With Arduino R3, AVR, STM32, PIC, ARM
Aliexpress
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$20.99
GUETNEU Relay Board, Relay Module 4 Channel 1 SPDT DIN Rail Mount 24V DC/AC, Interface Board(FY-T734C-D24)
Amazon.com
31
$2.70
$3.00
1Pcs New 4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For
Aliexpress
$2.70
$3.00
1Pcs New 4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For
Aliexpress
$2.60
5V 4-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 4 Channel Relay.4 Road 5V
Aliexpress
$2.60
5V 4-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 4 Channel Relay.4 Road 5V
Aliexpress