RankProduct NameScore
1Make: More Electronics: Journey Deep Into the World of Logic Chips, Amplifiers, Sensors, and RandomicityMake: More Electronics: Journey Deep Into the World of Logic Chips, Amplifiers, Sensors, and Randomicity
Maker Media, Inc		9.9GET ON AMAZON
2KNACRO 8-Channel 10A Relay Module DC 24V with Optocoupler Isolation High Low Level Triger for Arduino(DC 24V, 8-Channel)KNACRO 8-Channel 10A Relay Module DC 24V with Optocoupler Isolation High Low Level Triger for Arduino(DC 24V, 8-Channel)
KNACRO		9.6GET ON AMAZON
3LIVISN DC 12V 3-Channel Bidirectional Optocoupler Isolation 30A AC 250V DC 30V Relay Module High Low Level Trigger for Arduino, PLC Equipment, Industrial SystemsLIVISN DC 12V 3-Channel Bidirectional Optocoupler Isolation 30A AC 250V DC 30V Relay Module High Low Level Trigger for Arduino, PLC Equipment, Industrial Systems
LIVISN		9.2GET ON AMAZON
4ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry PiELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
ELEGOO		9.2GET ON AMAZON
5NOYITO PC817 4-Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated ModuleNOYITO PC817 4-Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module
NOYITO		8.9GET ON AMAZON
6Major Brands H11AA1 Optocoupler AC Input 1 Channel Transistor with Base DC Output, 6-Pin, 6.86 mm W x 5.08 mm H x 8.89 mm L, Black (Pack of 10)Major Brands H11AA1 Optocoupler AC Input 1 Channel Transistor with Base DC Output, 6-Pin, 6.86 mm W x 5.08 mm H x 8.89 mm L, Black (Pack of 10)
Major Brands		8.7GET ON AMAZON
7KNACRO DC 5V 4-Channel Relay Module Optocoupler Isolation High-Low Level Trigger Optional for SCM Expansion Board TTL PLC ControlKNACRO DC 5V 4-Channel Relay Module Optocoupler Isolation High-Low Level Trigger Optional for SCM Expansion Board TTL PLC Control
KNACRO		8.4GET ON AMAZON
88 pcak 5v 1 Channel Relay Board Module High/Low Level Trigger with Optocoupler for Arduino Raspberry8 pcak 5v 1 Channel Relay Board Module High/Low Level Trigger with Optocoupler for Arduino Raspberry
CHENBO		8.2GET ON AMAZON
9KNACRO DC 5V 1 Channel 30A Relay Module Bidirectional Optocoupler Isolation High Low Level Trigger for Arduino, PLC Equipment, Industrial Systems, Furniture Intelligent Control, Development TestKNACRO DC 5V 1 Channel 30A Relay Module Bidirectional Optocoupler Isolation High Low Level Trigger for Arduino, PLC Equipment, Industrial Systems, Furniture Intelligent Control, Development Test
KNACRO		7.9GET ON AMAZON
10LIVISN DC 12V 2-Channel Bidirectional Optocoupler Isolation 30A AC 250V DC 30V Relay Module High Low Level Trigger for Arduino, PLC Equipment, Industrial SystemsLIVISN DC 12V 2-Channel Bidirectional Optocoupler Isolation 30A AC 250V DC 30V Relay Module High Low Level Trigger for Arduino, PLC Equipment, Industrial Systems
LIVISN		7.7GET ON AMAZON

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