Shop Relay Module vs Optical

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$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
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7
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
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7
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
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138
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
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138
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
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377
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
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377
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
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83
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
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83
$6.97
JESSINIE 5V 30A Relay Module, 1 Channel, Optocoupler Isolation, High/Low Trigger For Automation Control
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$6.97
JESSINIE 5V 30A Relay Module, 1 Channel, Optocoupler Isolation, High/Low Trigger For Automation Control
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$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)
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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)
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81
$11.39
Hiletgo 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger
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29
$11.39
Hiletgo 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger
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29
$15.55
4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
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$15.55
4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
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$7.01
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
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12% off
$7.01
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
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$5.99
NOYITO 2 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 2) (24V, Red)
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$5.99
NOYITO 2 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 2) (24V, Red)
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$11.89
MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
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$11.89
MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
Amazon.com
$9.50
Single-Channel Relay Module For Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino - 3.3V/5V Relay Expansion Board With Optocoupler Isolation & LED
Amazon.com
5
$9.50
Single-Channel Relay Module For Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino - 3.3V/5V Relay Expansion Board With Optocoupler Isolation & LED
Amazon.com
5
$5.99
NOYITO 1 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 3) (5V, Red)
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22
$5.99
NOYITO 1 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 3) (5V, Red)
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22
$10.97
8 Channel 5V Relay Module With Optocoupler Isolation Support High And Low Level Red Board
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102
$10.97
8 Channel 5V Relay Module With Optocoupler Isolation Support High And Low Level Red Board
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102
$6.99
2Pcs DC 5V 1-Channel Relay Module Isolated By SMT Optocoupler High And Low Level Trigger Module Triggered By DC 5V
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10
$6.99
2Pcs DC 5V 1-Channel Relay Module Isolated By SMT Optocoupler High And Low Level Trigger Module Triggered By DC 5V
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10
$60.00
Silent Knight SK-Relay Addressable Relay Module
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Free shipping
$60.00
Silent Knight SK-Relay Addressable Relay Module
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Free shipping
$15.99
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 16 Channel)
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184
$15.99
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 16 Channel)
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184
$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
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$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
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$2.69
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)
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$2.69
5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)
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$11.05
YYG-2 One Way Relay Module 30A Optocoupler Isolation High Power Relay High/Low Level (5VDC)
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48
$11.05
YYG-2 One Way Relay Module 30A Optocoupler Isolation High Power Relay High/Low Level (5VDC)
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48

Shop Relay Module vs Optical

Sponsored
About our ads
$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
7
$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
7
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
138
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
138
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
377
$5.89
Hiletgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High Or Low Level Trigger
Amazon.com
377
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
83
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
83
$6.97
JESSINIE 5V 30A Relay Module, 1 Channel, Optocoupler Isolation, High/Low Trigger For Automation Control
Amazon.com
$6.97
JESSINIE 5V 30A Relay Module, 1 Channel, Optocoupler Isolation, High/Low Trigger For Automation Control
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
$11.39
Hiletgo 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger
Amazon.com
29
$11.39
Hiletgo 5V 8 Channel Relay Module With OPTO-Isolated Support High And Low Level Trigger
Amazon.com
29
$15.55
4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
Amazon.com
$15.55
4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
Amazon.com
$7.01
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
12% off
$7.01
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
$5.99
NOYITO 2 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 2) (24V, Red)
Amazon.com
$5.99
NOYITO 2 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 2) (24V, Red)
Amazon.com
$11.89
MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
Amazon.com
$11.89
MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
Amazon.com
$9.50
Single-Channel Relay Module For Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino - 3.3V/5V Relay Expansion Board With Optocoupler Isolation & LED
Amazon.com
5
$9.50
Single-Channel Relay Module For Raspberry Pi Zero/2B/3B/4B, STM32, ESP32, Arduino - 3.3V/5V Relay Expansion Board With Optocoupler Isolation & LED
Amazon.com
5
$5.99
NOYITO 1 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 3) (5V, Red)
Amazon.com
22
$5.99
NOYITO 1 Channel Relay Module With Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack Of 3) (5V, Red)
Amazon.com
22
$10.97
8 Channel 5V Relay Module With Optocoupler Isolation Support High And Low Level Red Board
Amazon.com
102
$10.97
8 Channel 5V Relay Module With Optocoupler Isolation Support High And Low Level Red Board
Amazon.com
102
$6.99
2Pcs DC 5V 1-Channel Relay Module Isolated By SMT Optocoupler High And Low Level Trigger Module Triggered By DC 5V
Amazon.com
10
$6.99
2Pcs DC 5V 1-Channel Relay Module Isolated By SMT Optocoupler High And Low Level Trigger Module Triggered By DC 5V
Amazon.com
10
$60.00
Silent Knight SK-Relay Addressable Relay Module
Amazon.com
Free shipping
$60.00
Silent Knight SK-Relay Addressable Relay Module
Amazon.com
Free shipping
$15.99
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 16 Channel)
Amazon.com
184
$15.99
ANMBEST Relay Module With Optocoupler High/Low Level Trigger For Arduino (12, 12V Relay 16 Channel)
Amazon.com
184
$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
Amazon.com
$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
Amazon.com