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1/2/4/6/8 Channel Relay Module, Optocoupler Isolation, 5V/12V/24V, High-Low Level Trigger, Microcontroller Compatible, PCB Mount, Copper Alloy Contact, Solder Termination, ≤36V Operating Voltage, No Battery RequiredOpen in new tab.
$3.29
$3.29
Original price $29.50$29.50
445sold445sold
-88%
5 out of five stars
4 reviews4
5pcs Sensor Module, 1-Channel Relay Module, 5V Low-Level Trigger Relay Shield Module Control Board with Optocoupler Isolation, LED Warning Lamp, Dupont Cable for Arduino (Dupont Cable Not Included)Open in new tab.
$4.23
$4.23
Original price $21.99$21.99
20sold20sold
-80%
24pcs 5V Relay Module One Channel Switch with Optocoupler And Opto Isolation, Compatible with High And Low Level Triggers, 19.69 X 10.24 X 7.09 InchesOpen in new tab.
$17.53
$17.53
Original price $25.99$25.99
57sold57sold
-32%
5 out of five stars
9 reviews9
4pcs AOKIN DC 5V/12V/3V/24V 1-Channel Relay Module Board Shield with Optocoupler & High/Low Level Trigger, Plug-in Terminal & Copper Alloy Contacts, Embedded Sensor Interface for Industrial Automation, Home Security, Unpowered Relay Board (No Batteries/Power), Electrical Projects, Labeled Components, Highquality Contacts, Trigger Relay, Home Automation UsersOpen in new tab.
$6.04
$6.04
Original price $6.99$6.99
370sold370sold
-13%
5 out of five stars
1 reviews1
D-FLIFE 1-Channel DC 5V Relay Module with Optocoupler Isolation, High/Low Level Support, Quick-Connect Terminals, Compact Design for Industrial Automation & Home Security, Relay Control Module, Sleek Electronic ComponentOpen in new tab.
$2.67
$2.67
Original price $3.46$3.46
526sold526sold
-22%
3pcs Sensor Module 12V DC 1 Channel Relay Module with Optocoupler Isolation, High/Low Level Triggering, Embedded Mounting & Quick Connect Copper Terminals, Suitable for Industrial Automation and Power Control, Compact Design, High-Quality Wiring Terminals, Designed for Automation Professionals, Power Control Module, Industrial Automation Module, Durable Construction, Reliable Wiring Terminals, Precision Engineering, Industrialgrade Module, DIY Electronics, Industrial EngineersOpen in new tab.
$5.09
$5.09
Original price $6.06$6.06
329sold329sold
-16%
6pcs 1-Channel 5V/12V/24V Relay Module with Optocoupler Isolation & High/Low Level Trigger - PCB Mount, Screw Terminals, Industrial-Grade Copper Alloy Contacts for Automation, Robotics, IndustrOpen in new tab.
$12.69
$12.69
6sold6sold
5 out of five stars
1 reviews1
NODEMCU LUA 1/2pcs for Arduino 4-Channel Relay Module Board with Optocoupler Isolated Outputs, 5V Power Compatible, PCB Mount Relay Board for DIY Electronics, Robotics, Automation (Compatible with Arduino Boards)Open in new tab.
$5.08
$5.08
Original price $31.05$31.05
30sold30sold
-83%
6/4/2pcs 5V Single-Channel Relay Module with OPTO Isolation | High/Low Level Trigger, Compatible with Arduino, Raspberry Pi, ARM, AVR, Copper Contacts, Quick Connect TerminationOpen in new tab.
$4.11
$4.11
Original price $7.99$7.99
35sold35sold
-48%
4pcs Sensor Module DC 5V 2-Channel Relay Module with Optocoupler Low Level Trigger Extension Board, Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry PiOpen in new tab.
$7.19
$7.19
Original price $8.26$8.26
102sold102sold
-12%
4 out of five stars
1 reviews1
D-FLIFE 24V DC 1-Channel Relay Module Board with Optocoupler - High/Low Level Isolation, 2-12V Input Voltage, Embedded Mounting, Quick-Connect Copper Terminals for Industrial Automation & Electrical Systems, Integrated Optocoupler, Highquality ElectronicsOpen in new tab.
$5.17
$5.17
Original price $5.99$5.99
103sold103sold
-13%
3/5pcs 5V/12V Relay Module 1 Channel Relay Board with Opto-Isolated High or Low Level Trigger for Raspberry Pi and ArduinoOpen in new tab.
$5.28
$5.28
Original price $8.99$8.99
1.2K+sold1.2K+sold
-41%
5 out of five stars
5 reviews5
2pcs 5V 4-Way Relay Optocoupler - Easy Install Multi-Scenario Use, SPST Pole & Throw Configuration, Quick Connect Termination, Aluminum Contact Material, Uncharged Power Mode, No Battery Required, Industrial Electrical Control, Relay Module, Electronic Control, Compact Design, Durable Construction, Reliable Performance, Electronic Control System, Electronic Control DeviceOpen in new tab.
$6.58
$6.58
Original price $47.56$47.56
20sold20sold
-86%
5 out of five stars
2 reviews2
6pcs 2-Channel DC 5V Relay Module with Optocoupler Board - Blue PCB Design, Compatible with Arduino, Raspberry Pi, MEGA2560 for Quick Connect Industrial Electrical ProjectsOpen in new tab.
$12.59
$12.59
Original price $13.99$13.99
301sold301sold
-10%
5 out of five stars
3 reviews3
16 Channel 5V Relay Module with Optocoupler Isolation | 10A IIC Expandable Isolation Driver Relay Board XL9535-K16V5Open in new tab.
$52.84
$52.84
2pcs 4-channel DC 5V Relay Module With Optocoupler Compatible With Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32Open in new tab.
$6.58
$6.58
Original price $40.26$40.26
2.1K+sold2.1K+sold
-83%
4.9 out of five stars
12 reviews12
6pcs 1-Channel 5V/12V/24V Relay Module with Optocoupler Isolation & High/Low Level Trigger - PCB Mount, Screw Terminals, Industrial-Grade Copper Alloy Contacts for Automation, Robotics, Industrial Applications, Relay Module for Electronics, Robotic Actuation, Sturdy Construction, Robust ElectronicsOpen in new tab.
$12.83
$12.83
1sold1sold
16-Channel 5V Relay Module with Optocoupler, 10A Individual Channels & Expandable Driver Board - Compatible for Arduino, Raspberry Pi, PIC/AVR Microcontrollers - Relay Board XL9535Open in new tab.
$43.03
$43.03
Original price $53.99$53.99
-20%
2pcs Heavy-Duty 5V Quad Relay Module with Optocoupler isolation - for Automation, Robotics, Industrial, Home Security - Easy-to-Use Relay Board with Mounting holes - No internal electronics, External driver connectionsOpen in new tab.
$8.29
$8.29
Original price $47.56$47.56
4sold4sold
-82%
2pcs Heavy-Duty Industrial Relay Module with Optocoupler isolation - 12V 30A 2-Channel (High/Low Level) AC/DC compatible, for PLC, Automation Equipment, Motor Control, Industrial Electrical Systems - Compatible with 9V Non-rechargeable BatteriesOpen in new tab.
$54.02
$54.02
24pcs 5V Single Channel Relay Module with Optocoupler & Opto Isolator - Heavy-Duty isolation, High/Low Level Trigger, IDC Connector for DIY Electronics, Automation, System (24 Boards) Compatible with microcontrollers/PCs/Arduino/RPiOpen in new tab.
$81.34
$81.34
SONGLE 5V Relay Module with Opto-Isolation - KY-019 1/2/4/6/8 Channel Light-Coupled Relay Module - Industrial Electrical ComponentOpen in new tab.
$6.09
$6.09
179sold179sold
5 out of five stars
1 reviews1
5V/12V Relay Module with Optical Isolation - Dual Level Trigger, High-Power Output, Fault-Tolerant Design for Industrial UseOpen in new tab.
$2.41
$2.41
Original price $22.00$22.00
4.4K+sold4.4K+sold
-89%
4.6 out of five stars
11 reviews11
2pcs Heavy-Duty 5V Quad Relay Modules with Optocoupler - for Automation, Robotics, Industrial, Home Security - Easy Installation, No Internal Electronics Needed - Compatible with 5V DC Systems, Robotics Projects, Compact Design, Durable Plastic Housing, Control Module, Robotics EnthusiastsOpen in new tab.
$9.24
$9.24
Original price $47.98$47.98
4sold4sold
-80%
5V 2-Channel Relay Sensor Module with Optocoupler | Low-Level Trigger Expansion Board Compatible with R3, MEGA2560, STM32, Raspberry Pi, Arduino for ProjectsOpen in new tab.
$6.22
$6.22
2pcs 8 Channel 5V Relay Module with Optocoupler | Compatible with R3, MEGA 2560, 1280, PIC, AVR, DSP, ARM, STM32, Raspberry PiOpen in new tab.
$51.03
$51.03
10pcs 12V 1 Channel Relay Module with Optocoupler, Relay Board with High/Low Level Jumper, 250V/10A AC or 30V/10A Load, Fault - Tolerant Design, Relay Board Module, Relay Module with Light Emitter, Relay Control Board, Relay KitOpen in new tab.
$36.37
$36.37
16 Channel 5V Relay Module with Optocoupler Isolation | 10A IIC Expandable Isolation Driver Relay Board XL9535-K16V5, Aluminum Contact MaterialOpen in new tab.
$52.84
$52.84
4pcs 5V 30A 1 - Channel Relay Module High Low Level with Optocoupler Load 30V AC 250V 30A PLC Automation Equipment Control Industrial Control, Relay Board, Control System, Compact Design, Durable Construction, Precision EngineeringOpen in new tab.
$38.54
$38.54
2pcs 5V 4-Channel Relay Control Module XL9535 - K2V5 | IIC Expandable Relay Board with Communication Optocoupler, Silver Contact Material, 6PST, IDC TerminationOpen in new tab.
$34.63
$34.63
Original price $45.90$45.90
-24%
2pcs 4 Channel 12V Relay Module SRD - 12VDC - SL - C | Control Board with Indicator Light LED and Optocoupler, Non-rechargeable 9V Battery CompatibleOpen in new tab.
$42.40
$42.40
16 Channel 5V Relay Module with Optocoupler 10A IIC Expandable Driver Relay Board XL9535 - K16V5Open in new tab.
$50.01
$50.01
3-Pack Heavy-Duty 24V Relay Module Board - Single Channel 30A Relay with Optocoupler isolation, High/Low Level Trigger selectable, for Automation, Robotics, Industrial, Home - Compatible with 5V/12V/24V Systems, Automation Equipment, Modular Design, Reliable Performance, Electronics HobbyistsOpen in new tab.
$37.42
$37.42
16-Channel 5V Relay Module with Optocoupler, 10A IIC Expandable Driver Relay Board XL9535 - K16V5, Relay Board, Electronics, Industrial Automation, Modular Design, Compact Board, Brass Terminals, Durable Construction, Optocoupler BoardOpen in new tab.
$53.91
$53.91
10pcs 12V Relay Module - 1 Channel Optocoupler Relay Board, High/Low Level 10A 250VAC 30VDC/PLC/Automotive 12V - 10pcs, Plc Control, Automotive Electronics, Compact Design, Durable Construction, Reliable Components, Silver ContactOpen in new tab.
$35.21
$35.21
Dual Channel (2CH) Relay Module Board with Optocoupler isolation - Heavy-Duty PCB Board, for Arduino, Raspberry Pi, ESP8266/ESP32, PIC/AVR MCUs - Industrial Automation, Home Automation, Robotics Projects - Compatible with 5V Systems, Mcu Relay Expansion, Labeled Terminals, Precision Engineering, Control System, Automation EngineersOpen in new tab.
$14.00
$14.00
16 Channel 5V Relay Module with Optocoupler 10A IIC Expandable Driver Relay Board XL9535 - K16V5 | Uncharged, Non-standard 9V, Steel Contact Material, 9pst Pole & Throw Configuration, IDC Termination TypeOpen in new tab.
$47.87
$47.87
2pcs 5V 8-Channel Relay Module with Optocoupler Isolation, High/Low Level Trigger Input, 8-Segment Relay Board with Individual Channel Selectors & Crimp Terminals for Industrial Automation, Home Security, Robotics - Durable Brass ContactsOpen in new tab.
$43.87
$43.87
4pcs 5V 30A 1 - Channel Relay Module High Low Level with Optocoupler Load 30V AC 250V 30A PLC Automation Equipment Control Industrial Control, Relay Board, Control System, Durable Construction, Crimp Terminals, Robust ComponentsOpen in new tab.
$37.72
$37.72
2pcs 8 Channel DC 5V Relay Module with Optocoupler | Compatible with Arduino, MEGA 2560, 1280, PIC, AVR, DSP, ARM, STM32, Raspberry PiOpen in new tab.
$72.93
$72.93
4pcs 5V 30A 1-Channel Relay Module with Optocoupler Isolation, High/Low Level Trigger Input, 30V AC/250V 30A Load, Heavy-Duty Industrial Automation Control, PLC Compatible, Brass Terminals & Crimp Connectors for Motor/Relay/PLC Systems (No Battery-POpen in new tab.
$38.67
$38.67
5pcs Icstation EL817 Optocoupler Board - 1 Channel PNP/NPN Signal Converter Module with High-Level Input Isolator, 80kHz Frequency, for /AC/Relay/Driver Circuit & Isolation (No External Power Required)Open in new tab.
$66.14
$66.14
2pcs MOS FET Switch with Optocoupler - DC Control Pulse Trigger Module, Isolated Drain/Source for DC Loads, (HV) & Low Voltage () Applications, Compact for DIY Electronics, Automation, and Use - ConnectOpen in new tab.
$3.93
$3.93
Original price $9.99$9.99
24sold24sold
-60%
4-Channel MOSFET/Field Effect Transistor Module PLC Amplification Circuit Board/Drive Module Optocoupler Isolation DCOpen in new tab.
$5.29
$5.29
Original price $27.85$27.85
598sold598sold
-81%
5 out of five stars
1 reviews1
Adjustable Timer Timer Circuit with Relay Module, 6-30V, Timer Timer Circuit, Electronic Control Timer, Industrial Automation Timer, Handy Durable Timer, Compact Timer Circuit, Highcurrent Timer, Without Battery Timer, Timing Relay, Electricians, Remote MonitoringOpen in new tab.
$2.01
$2.01
Original price $3.62$3.62
699sold699sold
-44%
4.6 out of five stars
9 reviews9
16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM, Microcontroller Relay, Automation Projects, Compact Design, Professional Board, Precision Engineering, Durable Module, Digital Relay, Multipchannel Relay, Engineering Students, DIY EnthusiastsOpen in new tab.
$11.69
$11.69
Original price $55.99$55.99
3.6K+sold3.6K+sold
-79%
5 out of five stars
48 reviews48
D-FLIFE Single Channel Relay Module for ArduinoOpen in new tab.
$3.11
$3.11
Original price $27.98$27.98
479sold479sold
-88%
NODEMCU LUA 1/2pcs Timer Relay Programmable Delay Relay Module, Sensor Module, Cycle Timer with LED Display Micro USB Controller, Mini Timer, Compact Module, Precision Timing, Iot Developers, Automation EngineersOpen in new tab.
$7.01
$7.01
Original price $13.99$13.99
109sold109sold
-49%
1-Path Relay Module 5V Low Voltage Trigger Relay Extension Board, Relay Module, Relay Module 5V,Open in new tab.
$2.82
$2.82
Original price $24.44$24.44
1.2K+sold1.2K+sold
-88%
4.7 out of five stars
13 reviews13
1/2/3pcs AOICRIE DC 5V/12V Resistor Relay Module with Photodiode Sensor, Control Switch, Quick Connect Terminals & -Wiring - Heavy-Duty Copper Contacts for automation,, Systems (Compatible withOpen in new tab.
$3.83
$3.83
Original price $31.92$31.92
20sold20sold
-88%
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