T&C
1 2 4 6 8 channel relay module optocoupler isolation 5v 12v 24v high   trigger microcontroller compatible pcb mount copper alloy contact solder   36v operating voltage no battery required

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
Original price $29.50
445sold
-88%
4 reviews
5pcs sensor   channel relay module 5v   trigger relay shield module control board with optocoupler isolation led warning lamp   cable for     cable not included   relay modular relay

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
Original price $21.99
20sold
-80%
24pcs 5v relay   channel switch with  coupler and   isolation compatible with high and   triggers 19 69 x   x 7 09 inches

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
Original price $25.99
57sold
-32%
9 reviews
4pcs     5v 12v 3v 24v 1 channel relay module board shield with optocoupler high   trigger plug in terminal copper alloy contacts embedded sensor interface for industrial     unpowered relay board no batteries   projects labeled components   contacts trigger relay

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
Original price $6.99
370sold
-13%
1 reviews
d   1 channel   5v relay module with optocoupler isolation high   support quick connect terminals   for industrial     relay control module sleek electronic component

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
Original price $3.46
526sold
-22%
3pcs sensor module 12v   1 channel relay module with optocoupler isolation high   triggering embedded mounting quick connect copper terminals suitable for industrial   and     high quality wiring terminals designed for   professionals   module industrial   module durable construction reliable wiring terminals precision engineering industrialgrade module diy electronics industrial engineers

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
Original price $6.06
329sold
-16%
6pcs 1 channel 5v 12v 24v relay module with optocoupler isolation high   trigger pcb mount screw terminals  ial grade copper alloy contacts for   robotics

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
6sold
1 reviews
  1 2pcs for   4 channel relay module board with optocoupler   outputs 5v power compatible pcb mount relay board for diy electronics robotics   compatible with   boards

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
Original price $31.05
30sold
-83%
6 4 2pcs 5v single channel relay module with   isolation high   trigger compatible with     arm avr copper contacts quick connect

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
Original price $7.99
35sold
-48%
4pcs sensor module   5v 2 channel relay module with optocoupler   trigger extension board compatible with   r3 mega 2560 1280 dsp arm pic avr

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
Original price $8.26
102sold
-12%
1 reviews
d   24v   1 channel relay module board with optocoupler high   isolation 2 12v input voltage embedded mounting quick connect copper terminals for industrial   electrical systems integrated optocoupler   electronics

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
Original price $5.99
103sold
-13%
3/5pcs 5V/12V Relay   Channel Relay Board with  -  High or   Trigger for   and

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
Original price $8.99
1.2K+sold
-41%
5 reviews
2pcs 5v 4 way relay optocoupler   multi   use   pole throw configuration quick connect   aluminum contact material uncharged   no battery required industrial electrical control relay module electronic control   durable construction reliable performance electronic control system electronic control device

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
Original price $47.56
20sold
-86%
2 reviews
6pcs 2 channel   5v relay module with optocoupler board blue pcb design compatible with       for quick connect industrial electrical projects

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
Original price $13.99
301sold
-10%
3 reviews
16 channel 5v relay module with optocoupler isolation 10a iic expandable isolation driver relay board xl9535 k16v5

16 Channel 5V Relay Module with Optocoupler Isolation | 10A IIC Expandable Isolation Driver Relay Board XL9535-K16V5Open in new tab.

$52.84
2pcs 4 channel   5v relay module with optocoupler compatible with     r3 mega 2560 dsp arm pic avr

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
Original price $40.26
2.1K+sold
-83%
12 reviews
6pcs 1 channel 5v 12v 24v relay module with optocoupler isolation high   trigger pcb mount screw terminals   copper alloy contacts for   robotics industrial applications relay module for electronics robotic   sturdy construction   electronics

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
1sold
16 channel 5v relay module with optocoupler 10a individual channels expandable driver board compatible for     pic avr microcontrollers relay board xl9535

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
Original price $53.99
-20%
2pcs heavy duty 5v   relay module with optocoupler isolation for   robotics industrial     relay board with mounting holes no internal electronics external driver connections

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
Original price $47.56
4sold
-82%
2pcs heavy duty industrial relay module with optocoupler isolation 12v 30a 2 channel high   ac   compatible for plc   equipment motor control industrial electrical systems compatible with 9v non rechargeable batteries

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
24pcs 5V Single Channel Relay Module with  coupler &   Isolator - Heavy-Duty isolation, High/  Trigger, IDC Connector for DIY Electronics,  , System (24 Boards) Compatible with microcontrollers/PCs/ /RPi

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
  5v relay module with   isolation ky 019 1 2 4 6 8 channel light   relay module industrial electrical component

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
179sold
1 reviews
5v 12v relay module with optical isolation dual level trigger high power output fault   design for industrial use

5V/12V Relay Module with Optical Isolation - Dual Level Trigger, High-Power Output, Fault-Tolerant Design for Industrial UseOpen in new tab.

$2.41
Original price $22.00
4.4K+sold
-89%
11 reviews
2pcs heavy duty 5v   relay modules with optocoupler for   robotics industrial     no internal electronics needed compatible with 5v   systems robotics projects   durable plastic housing control module robotics enthusiasts

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
Original price $47.98
4sold
-80%
5v 2 channel relay sensor module with optocoupler   trigger expansion board compatible with r3         for projects

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
2pcs 8 channel 5v relay module with optocoupler compatible with r3 mega 2560 1280 pic avr dsp arm

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
10pcs 12v 1 channel relay module with optocoupler relay board with high   jumper 250v 10  or 30v 10a load fault   design relay board module relay module with light   relay control board relay kit

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
16 channel 5v relay module with optocoupler isolation 10a iic expandable isolation driver relay board xl9535 k16v5 aluminum contact material

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
4pcs 5v 30a 1 channel relay module high   with optocoupler load 30v ac 250v 30a plc   equipment control industrial control relay board control system   durable construction precision engineering

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
2pcs 5v 4 channel relay control module xl9535 k2v5 iic expandable relay board with communication optocoupler silver contact material 6pst idc

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
Original price $45.90
-24%
2pcs 4 channel 12v relay module srd 12vdc sl   board with indicator light led and optocoupler non rechargeable 9v battery compatible

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
16 Channel 5V Relay Module with Optocoupler 10A IIC Expandable Driver Relay Board XL9535 - K16V5

16 Channel 5V Relay Module with Optocoupler 10A IIC Expandable Driver Relay Board XL9535 - K16V5Open in new tab.

$50.01
3 pack heavy duty 24v relay module board single channel 30a relay with optocoupler isolation high   trigger selectable for   robotics industrial home compatible with 5v 12v 24v systems   equipment modular design reliable performance electronics hobbyists

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
16 channel 5v relay module with optocoupler 10a iic expandable driver relay board xl9535 k16v5 relay board electronics industrial   modular design compact board brass terminals durable construction optocoupler board

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
10pcs 12v relay   channel optocoupler relay board high   10a 250vac 30vdc plc automotive 12v 10pcs plc control automotive electronics   durable construction reliable components silver contact

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
dual channel 2ch relay module board with optocoupler isolation heavy duty pcb board for       esp32 pic avr   industrial     robotics projects compatible with 5v systems mcu relay expansion labeled terminals precision engineering control system   engineers

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
16 Channel 5V Relay Module with Optocoupler 10A IIC Expandable Driver Relay Board XL9535 - K16V5 | Uncharged,   9V, Steel Contact Material, 9pst Pole & Throw Configuration, IDC   Type

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
2pcs 5v 8 channel relay module with optocoupler isolation high   trigger input 8   relay board with individual channel   crimp terminals for industrial     robotics durable brass contacts

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
4pcs 5v 30a 1 channel relay module high   with optocoupler load 30v ac 250v 30a plc   equipment control industrial control relay board control system durable construction crimp terminals   components

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
2pcs 8 channel   5v relay module with optocoupler compatible with   mega 2560 1280 pic avr dsp arm

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
4pcs 5v 30a 1 channel relay module with optocoupler isolation high   trigger input 30v ac 250v 30a load heavy duty industrial   control plc compatible brass terminals crimp connectors for motor relay plc systems no battery p

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
5pcs   el817 optocoupler board 1 channel pnp npn   converter module with   input isolator 80khz frequency for ac relay driver circuit isolation no external power required

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
2pcs electronic switch   trigger module mos   transistor   control optocoupler circuit control lightweight design compact module   pcb electronics hobbyists   engineers

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
Original price $9.99
24sold
-60%
4 channel mosfet   transistor module plc   circuit board drive module optocoupler isolation

4-Channel MOSFET/Field Effect Transistor Module PLC Amplification Circuit Board/Drive Module Optocoupler Isolation DCOpen in new tab.

$5.29
Original price $27.85
598sold
-81%
1 reviews
adjustable timer timer circuit with relay module 6 30v timer timer circuit electronic control timer industrial   timer handy durable timer compact timer circuit highcurrent timer without battery timer timing relay electricians remote monitoring

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
Original price $3.62
699sold
-44%
9 reviews
16 channel 12v relay module board for   dsp avr pic arm microcontroller relay   projects   professional board precision engineering durable module digital relay multipchannel relay engineering students diy enthusiasts

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
Original price $55.99
3.6K+sold
-79%
48 reviews
d   single channel relay module for     projects prototyping module quick connection simple interface precision engineering   relay electrical switch control module electronics hobbyists tech enthusiasts

D-FLIFE Single Channel Relay Module for ArduinoOpen in new tab.

$3.11
Original price $27.98
479sold
-88%
  1 2pcs timer relay programmable delay relay module sensor module cycle timer with led display micro usb controller mini timer compact module   iot     engineers

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
Original price $13.99
109sold
-49%
1   relay module 5v low voltage trigger relay extension board relay module relay module 5v

1-Path Relay Module 5V Low Voltage Trigger Relay Extension Board, Relay Module, Relay Module 5V,Open in new tab.

$2.82
Original price $24.44
1.2K+sold
-88%
13 reviews
1 2 3pcs     5v 12v resistor relay module with photodiode   switch quick connect terminals wiring heavy duty copper contacts for   systems compatible with

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
Original price $31.92
20sold
-88%
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