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3V 3.3V 1/2/4/8 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module 3V 3.3V 1/2/4/8 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

3V 3.3V 1/2/4/8 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

$1.16$1.16

30 sold
1 relay module with optocoupler isolation 5V high and low level trigger 1 relay expansion board

1 relay module with optocoupler isolation 5V high and low level trigger 1 relay expansion board

$1.05$1.05

22% off
1 Channel AC 220V Optocoupler Isolation Module High Voltage Opto Isolator 3-5V Power Suppply PLC Photoelectricity Coupler Module 1 Channel AC 220V Optocoupler Isolation Module High Voltage Opto Isolator 3-5V Power Suppply PLC Photoelectricity Coupler Module

1 Channel AC 220V Optocoupler Isolation Module High Voltage Opto Isolator 3-5V Power Suppply PLC Photoelectricity Coupler Module

$1.08$1.39

4 sold
41% off
2 Channel Relay Module 12V 24V High and Low Level Trigger Relay Control With Red Optocoupler Two Way Relays 2 Channel Relay Module 12V 24V High and Low Level Trigger Relay Control With Red Optocoupler Two Way Relays

2 Channel Relay Module 12V 24V High and Low Level Trigger Relay Control With Red Optocoupler Two Way Relays

$0.94$1.60

8 sold
18% off
10PCS MOC3030M  MOC3031M MOC3032M  MOC3033M DIP6 MOC3030SR2M MOC3031SR2M MOC3032SR2M MOC3033R2M SOP6 OptoCoupler 10PCS MOC3030M  MOC3031M MOC3032M  MOC3033M DIP6 MOC3030SR2M MOC3031SR2M MOC3032SR2M MOC3033R2M SOP6 OptoCoupler

10PCS MOC3030M  MOC3031M MOC3032M  MOC3033M DIP6 MOC3030SR2M MOC3031SR2M MOC3032SR2M MOC3033R2M SOP6 OptoCoupler

$1.05$1.28

26% off
Stlxy 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module Stlxy 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

Stlxy 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

$1.15$1.56

21 sold
High Quality 1 Channel Relay Module for Arduino High and Low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module High Quality 1 Channel Relay Module for Arduino High and Low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

High Quality 1 Channel Relay Module for Arduino High and Low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

$1.16$1.16

2 sold
ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger

ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger

$8.23$8.23

5 sold
49% off
YYT 10PCS Slot type optocoupler Slot type photoelectric sensor Through-beam TP805 can replace GK151 photoelectric switch 3MM

YYT 10PCS Slot type optocoupler Slot type photoelectric sensor Through-beam TP805 can replace GK151 photoelectric switch 3MM

$1.07$2.09

2 sold
5V 12V 24V Relay Module With Optocoupler Relay Output 1 Way For Arduino 5V 12V 24V Relay Module With Optocoupler Relay Output 1 Way For Arduino

5V 12V 24V Relay Module With Optocoupler Relay Output 1 Way For Arduino

$1.69$1.69

3 sold
26% off
Javino 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module Javino 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

Javino 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

$1.15$1.56

1 sold
50% off
High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,Home Intelligent Control Module,With Optocoupler Isolation Output High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,Home Intelligent Control Module,With Optocoupler Isolation Output

High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,Home Intelligent Control Module,With Optocoupler Isolation Output

$8.08$16.16

10% off
Brand new original AQY211EH SOP4 AQY211EHAX optocoupler relay patch Brand new original AQY211EH SOP4 AQY211EHAX optocoupler relay patch

Brand new original AQY211EH SOP4 AQY211EHAX optocoupler relay patch

$7.42$8.25

36% off
EL357N-C Optocoupler Isolation Module Input Output Level Convert 24V EL357N-C Optocoupler Isolation Module Input Output Level Convert 24V

EL357N-C Optocoupler Isolation Module Input Output Level Convert 24V

$0.97$1.52

48% off
Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Tool Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Tool

Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Tool

$1.00$1.92

3.3V 5V 12V 24V 2 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation Relay Module Board 3.3V 5V 12V 24V 2 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation Relay Module Board

3.3V 5V 12V 24V 2 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation Relay Module Board

$1.12$1.12

8 sold
10% off
1 2 4 6 8 Channel Relay Module DC 5V/12V With Optocoupler Low Level Trigger Expansion Board For Arduino DIY Kit 1 2 4 6 8 Channel Relay Module DC 5V/12V With Optocoupler Low Level Trigger Expansion Board For Arduino DIY Kit

1 2 4 6 8 Channel Relay Module DC 5V/12V With Optocoupler Low Level Trigger Expansion Board For Arduino DIY Kit

$1.08$1.20

2 sold
5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control 5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control

5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control

$1.91$1.91

7 sold
37% off
EL357N-C Optocoupler Isolation Module 24V Input NPN Output Convert EL357N-C Optocoupler Isolation Module 24V Input NPN Output Convert

EL357N-C Optocoupler Isolation Module 24V Input NPN Output Convert

$0.78$1.24

G3VM-61G1 Patch Solid state Relay - Optocoupler SOP-4 G3VM-61G1 Patch Solid state Relay - Optocoupler SOP-4

G3VM-61G1 Patch Solid state Relay - Optocoupler SOP-4

$13.18$13.18

1 sold
10% off
5v 12v 24v 1 2 4 6 8 channel relay module with optocoupler Relay Output 1 2 4 6 8 way relay module for arduino In stock 5v 12v 24v 1 2 4 6 8 channel relay module with optocoupler Relay Output 1 2 4 6 8 way relay module for arduino In stock

5v 12v 24v 1 2 4 6 8 channel relay module with optocoupler Relay Output 1 2 4 6 8 way relay module for arduino In stock

$1.17$1.30

5 sold
3.3V 2 Channel Relay Module Optocoupler Isolation Module Relay Control Board 3.3V 2 Channel Relay Module Optocoupler Isolation Module Relay Control Board

3.3V 2 Channel Relay Module Optocoupler Isolation Module Relay Control Board

$1.08$1.08

25 sold
30% off
Relay Module 1 2 4 8 Channel DC 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays Relay Module 1 2 4 8 Channel DC 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays

Relay Module 1 2 4 8 Channel DC 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays

$3.90$5.57

1/2/4/8 Channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With with Optocoupler Relay Output DC5V 12V 24V 1/2/4/8 Channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With with Optocoupler Relay Output DC5V 12V 24V

1/2/4/8 Channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With with Optocoupler Relay Output DC5V 12V 24V

$1.15$1.15

21 sold
10Pcs/lot TLP621-1 DIP4 TLP627-1 620-1 521-1 421 CHIPS IN STOCK 10Pcs/lot TLP621-1 DIP4 TLP627-1 620-1 521-1 421 CHIPS IN STOCK

10Pcs/lot TLP621-1 DIP4 TLP627-1 620-1 521-1 421 CHIPS IN STOCK

$2.11$2.11

27% off
DC 5V 12V 24V 30A 1 Channel Relay Module With Optocoupler High / Low Level Trigger Relay High Power For Arduino DC 5V 12V 24V 30A 1 Channel Relay Module With Optocoupler High / Low Level Trigger Relay High Power For Arduino

DC 5V 12V 24V 30A 1 Channel Relay Module With Optocoupler High / Low Level Trigger Relay High Power For Arduino

$0.91$1.25

37% off
30A Relay Module 5V 12V 24V With Optocoupler Relay Output 1 Way Relay Module H/L Level TRIGER 30A Relay Module 5V 12V 24V With Optocoupler Relay Output 1 Way Relay Module H/L Level TRIGER

30A Relay Module 5V 12V 24V With Optocoupler Relay Output 1 Way Relay Module H/L Level TRIGER

$1.01$1.60

4 sold
5v 12v 1 2 4 6 8 Channel Relay Module with optocoupler Relay Output 1 2 4 6 8 Way relay Module For Arduino In stock 5v 12v 1 2 4 6 8 Channel Relay Module with optocoupler Relay Output 1 2 4 6 8 Way relay Module For Arduino In stock

5v 12v 1 2 4 6 8 Channel Relay Module with optocoupler Relay Output 1 2 4 6 8 Way relay Module For Arduino In stock

$1.88$1.88

1291 sold
1/3/5/10PCS Motor Test IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module 1/3/5/10PCS Motor Test IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module

1/3/5/10PCS Motor Test IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module

$1.79$1.79

5% off
5V 2 TWO Channel Relay Module Low Level 5VDC 2 road relay module control board with optocoupler FOR ARDUINO 51 AVR 5V 2 TWO Channel Relay Module Low Level 5VDC 2 road relay module control board with optocoupler FOR ARDUINO 51 AVR

5V 2 TWO Channel Relay Module Low Level 5VDC 2 road relay module control board with optocoupler FOR ARDUINO 51 AVR

$1.14$1.20

4 sold
3.3V 1 Channel 3V Relay Module Optocoupler Isolation Low Level Trigger Relay Module 3.3V 1 Channel 3V Relay Module Optocoupler Isolation Low Level Trigger Relay Module

3.3V 1 Channel 3V Relay Module Optocoupler Isolation Low Level Trigger Relay Module

$1.13$1.13

5 sold
22% off
5V 12V 24V 30A High Low Level Trigger 1 Channel Relay Module with Optocoupler Isolation Board Module For Arduino PIC AVR DSP ARM 5V 12V 24V 30A High Low Level Trigger 1 Channel Relay Module with Optocoupler Isolation Board Module For Arduino PIC AVR DSP ARM

5V 12V 24V 30A High Low Level Trigger 1 Channel Relay Module with Optocoupler Isolation Board Module For Arduino PIC AVR DSP ARM

$1.05$1.35

5 sold
12% off
10pcs H42B6 Transmissive Photoelectric Switch Photoelectric Sensor Trough Optocoupler 10pcs H42B6 Transmissive Photoelectric Switch Photoelectric Sensor Trough Optocoupler

10pcs H42B6 Transmissive Photoelectric Switch Photoelectric Sensor Trough Optocoupler

$1.16$1.32

7 sold
40% off
DC 5V 12V Relay Module With Optocoupler Relay Output 1 2 4 8 16Way Relay Module For Arduino dc5v dc 12v 1 2 4 8 16 way U26 DC 5V 12V Relay Module With Optocoupler Relay Output 1 2 4 8 16Way Relay Module For Arduino dc5v dc 12v 1 2 4 8 16 way U26

DC 5V 12V Relay Module With Optocoupler Relay Output 1 2 4 8 16Way Relay Module For Arduino dc5v dc 12v 1 2 4 8 16 way U26

$1.16$1.93

18% off
10-100PCS MOC3021 MOC3021S MOC3023S-TA1 MOC3022 MOC3022S MOC3022S-TA1 MOC3023 MOC3023S MOC3023S-TA1 SOP6 OptoCoupler 10-100PCS MOC3021 MOC3021S MOC3023S-TA1 MOC3022 MOC3022S MOC3022S-TA1 MOC3023 MOC3023S MOC3023S-TA1 SOP6 OptoCoupler

10-100PCS MOC3021 MOC3021S MOC3023S-TA1 MOC3022 MOC3022S MOC3022S-TA1 MOC3023 MOC3023S MOC3023S-TA1 SOP6 OptoCoupler

$0.97$1.18

3 sold
5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control 5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control

5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control

$1.83$1.83

38 sold
3V 3.3V 1/2/4/8 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module 3V 3.3V 1/2/4/8 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

3V 3.3V 1/2/4/8 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

$1.16 $1.16

30 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
1 relay module with optocoupler isolation 5V high and low level trigger 1 relay expansion board

1 relay module with optocoupler isolation 5V high and low level trigger 1 relay expansion board

$1.05 $1.05

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
22% off
1 Channel AC 220V Optocoupler Isolation Module High Voltage Opto Isolator 3-5V Power Suppply PLC Photoelectricity Coupler Module 1 Channel AC 220V Optocoupler Isolation Module High Voltage Opto Isolator 3-5V Power Suppply PLC Photoelectricity Coupler Module

1 Channel AC 220V Optocoupler Isolation Module High Voltage Opto Isolator 3-5V Power Suppply PLC Photoelectricity Coupler Module

$1.08 $1.39

4 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
41% off
2 Channel Relay Module 12V 24V High and Low Level Trigger Relay Control With Red Optocoupler Two Way Relays 2 Channel Relay Module 12V 24V High and Low Level Trigger Relay Control With Red Optocoupler Two Way Relays

2 Channel Relay Module 12V 24V High and Low Level Trigger Relay Control With Red Optocoupler Two Way Relays

$0.94 $1.60

8 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
18% off
10PCS MOC3030M  MOC3031M MOC3032M  MOC3033M DIP6 MOC3030SR2M MOC3031SR2M MOC3032SR2M MOC3033R2M SOP6 OptoCoupler 10PCS MOC3030M  MOC3031M MOC3032M  MOC3033M DIP6 MOC3030SR2M MOC3031SR2M MOC3032SR2M MOC3033R2M SOP6 OptoCoupler

10PCS MOC3030M  MOC3031M MOC3032M  MOC3033M DIP6 MOC3030SR2M MOC3031SR2M MOC3032SR2M MOC3033R2M SOP6 OptoCoupler

$1.05 $1.28

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
26% off
Stlxy 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module Stlxy 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

Stlxy 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

$1.15 $1.56

21 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
High Quality 1 Channel Relay Module for Arduino High and Low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module High Quality 1 Channel Relay Module for Arduino High and Low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

High Quality 1 Channel Relay Module for Arduino High and Low Level Trigger Dual Optocoupler Isolation 3.3V Relay Module

$1.16 $1.16

2 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger

ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger

$8.23 $8.23

5 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
49% off
YYT 10PCS Slot type optocoupler Slot type photoelectric sensor Through-beam TP805 can replace GK151 photoelectric switch 3MM

YYT 10PCS Slot type optocoupler Slot type photoelectric sensor Through-beam TP805 can replace GK151 photoelectric switch 3MM

$1.07 $2.09

2 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
5V 12V 24V Relay Module With Optocoupler Relay Output 1 Way For Arduino 5V 12V 24V Relay Module With Optocoupler Relay Output 1 Way For Arduino

5V 12V 24V Relay Module With Optocoupler Relay Output 1 Way For Arduino

$1.69 $1.69

3 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
26% off
Javino 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module Javino 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

Javino 1-Bit AC 220V Optocoupler Isolation Module Voltage Detect Board Adaptive 3-5V For PLC Isolamento Fotoaccoppiatore Module

$1.15 $1.56

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
50% off
High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,Home Intelligent Control Module,With Optocoupler Isolation Output High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,Home Intelligent Control Module,With Optocoupler Isolation Output

High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,Home Intelligent Control Module,With Optocoupler Isolation Output

$8.08 $16.16

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
10% off
Brand new original AQY211EH SOP4 AQY211EHAX optocoupler relay patch Brand new original AQY211EH SOP4 AQY211EHAX optocoupler relay patch

Brand new original AQY211EH SOP4 AQY211EHAX optocoupler relay patch

$7.42 $8.25

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
36% off
EL357N-C Optocoupler Isolation Module Input Output Level Convert 24V EL357N-C Optocoupler Isolation Module Input Output Level Convert 24V

EL357N-C Optocoupler Isolation Module Input Output Level Convert 24V

$0.97 $1.52

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
48% off
Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Tool Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Tool

Optocoupler Tester Optocoupler Test Detection Tool Optocoupler Online Test Module Optocoupler Electronic Repair Tool

$1.00 $1.92

Categories: Home Improvement, Electrical Equipment & Supplies

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3.3V 5V 12V 24V 2 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation Relay Module Board 3.3V 5V 12V 24V 2 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation Relay Module Board

3.3V 5V 12V 24V 2 Channel Relay Module High and low Level Trigger Dual Optocoupler Isolation Relay Module Board

$1.12 $1.12

8 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
10% off
1 2 4 6 8 Channel Relay Module DC 5V/12V With Optocoupler Low Level Trigger Expansion Board For Arduino DIY Kit 1 2 4 6 8 Channel Relay Module DC 5V/12V With Optocoupler Low Level Trigger Expansion Board For Arduino DIY Kit

1 2 4 6 8 Channel Relay Module DC 5V/12V With Optocoupler Low Level Trigger Expansion Board For Arduino DIY Kit

$1.08 $1.20

2 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control 5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control

5V 12V 24V Relay Module With Optocoupler Relay Output 1 2 4 6 8 16Way Relay Module For Automation Equipment Control

$1.91 $1.91

7 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
37% off
EL357N-C Optocoupler Isolation Module 24V Input NPN Output Convert EL357N-C Optocoupler Isolation Module 24V Input NPN Output Convert

EL357N-C Optocoupler Isolation Module 24V Input NPN Output Convert

$0.78 $1.24

Categories: Home Improvement, Electrical Equipment & Supplies

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G3VM-61G1 Patch Solid state Relay - Optocoupler SOP-4 G3VM-61G1 Patch Solid state Relay - Optocoupler SOP-4

G3VM-61G1 Patch Solid state Relay - Optocoupler SOP-4

$13.18 $13.18

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
10% off
5v 12v 24v 1 2 4 6 8 channel relay module with optocoupler Relay Output 1 2 4 6 8 way relay module for arduino In stock 5v 12v 24v 1 2 4 6 8 channel relay module with optocoupler Relay Output 1 2 4 6 8 way relay module for arduino In stock

5v 12v 24v 1 2 4 6 8 channel relay module with optocoupler Relay Output 1 2 4 6 8 way relay module for arduino In stock

$1.17 $1.30

5 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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3.3V 2 Channel Relay Module Optocoupler Isolation Module Relay Control Board 3.3V 2 Channel Relay Module Optocoupler Isolation Module Relay Control Board

3.3V 2 Channel Relay Module Optocoupler Isolation Module Relay Control Board

$1.08 $1.08

25 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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30% off
Relay Module 1 2 4 8 Channel DC 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays Relay Module 1 2 4 8 Channel DC 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays

Relay Module 1 2 4 8 Channel DC 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays

$3.90 $5.57

Categories: Home Improvement, Electrical Equipment & Supplies

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1/2/4/8 Channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With with Optocoupler Relay Output DC5V 12V 24V 1/2/4/8 Channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With with Optocoupler Relay Output DC5V 12V 24V

1/2/4/8 Channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With with Optocoupler Relay Output DC5V 12V 24V

$1.15 $1.15

21 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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10Pcs/lot TLP621-1 DIP4 TLP627-1 620-1 521-1 421 CHIPS IN STOCK 10Pcs/lot TLP621-1 DIP4 TLP627-1 620-1 521-1 421 CHIPS IN STOCK

10Pcs/lot TLP621-1 DIP4 TLP627-1 620-1 521-1 421 CHIPS IN STOCK

$2.11 $2.11

Categories: Home Improvement, Electrical Equipment & Supplies

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27% off
DC 5V 12V 24V 30A 1 Channel Relay Module With Optocoupler High / Low Level Trigger Relay High Power For Arduino DC 5V 12V 24V 30A 1 Channel Relay Module With Optocoupler High / Low Level Trigger Relay High Power For Arduino

DC 5V 12V 24V 30A 1 Channel Relay Module With Optocoupler High / Low Level Trigger Relay High Power For Arduino

$0.91 $1.25

Categories: Home Improvement, Electrical Equipment & Supplies

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37% off
30A Relay Module 5V 12V 24V With Optocoupler Relay Output 1 Way Relay Module H/L Level TRIGER 30A Relay Module 5V 12V 24V With Optocoupler Relay Output 1 Way Relay Module H/L Level TRIGER

30A Relay Module 5V 12V 24V With Optocoupler Relay Output 1 Way Relay Module H/L Level TRIGER

$1.01 $1.60

4 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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5v 12v 1 2 4 6 8 Channel Relay Module with optocoupler Relay Output 1 2 4 6 8 Way relay Module For Arduino In stock 5v 12v 1 2 4 6 8 Channel Relay Module with optocoupler Relay Output 1 2 4 6 8 Way relay Module For Arduino In stock

5v 12v 1 2 4 6 8 Channel Relay Module with optocoupler Relay Output 1 2 4 6 8 Way relay Module For Arduino In stock

$1.88 $1.88

1291 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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1/3/5/10PCS Motor Test IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module 1/3/5/10PCS Motor Test IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module

1/3/5/10PCS Motor Test IR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module

$1.79 $1.79

Categories: Home Improvement, Electrical Equipment & Supplies

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5% off
5V 2 TWO Channel Relay Module Low Level 5VDC 2 road relay module control board with optocoupler FOR ARDUINO 51 AVR 5V 2 TWO Channel Relay Module Low Level 5VDC 2 road relay module control board with optocoupler FOR ARDUINO 51 AVR

5V 2 TWO Channel Relay Module Low Level 5VDC 2 road relay module control board with optocoupler FOR ARDUINO 51 AVR

$1.14 $1.20

4 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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3.3V 1 Channel 3V Relay Module Optocoupler Isolation Low Level Trigger Relay Module 3.3V 1 Channel 3V Relay Module Optocoupler Isolation Low Level Trigger Relay Module

3.3V 1 Channel 3V Relay Module Optocoupler Isolation Low Level Trigger Relay Module

$1.13 $1.13

5 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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5V 12V 24V 30A High Low Level Trigger 1 Channel Relay Module with Optocoupler Isolation Board Module For Arduino PIC AVR DSP ARM 5V 12V 24V 30A High Low Level Trigger 1 Channel Relay Module with Optocoupler Isolation Board Module For Arduino PIC AVR DSP ARM

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