optocoupler module best sellers

#1 4pcs DC 5V Relay Module AEDIKO 4pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger

$6.99 on Amazon

#2 4pcs DC 12V Relay Module AEDIKO 4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level

$6.99 on Amazon

#3 2pcs 5V 30A One Channel HiLetgo 2pcs 5V 30A One Channel Relay Module Optocoupler Isolation High and Low Trigger 5V

$9.99 on Amazon

#4 12V 1 Channel Relay Module HiLetgo 12V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger

$5.89 on Amazon

#5 🔥 DC 12V Relay Module 1 Channel Valefod DC 12V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10

$12.99 on Amazon

#6 1 Channel 12V Relay Module HUAREW 1-Channel 12V Relay Module with optocoupler Isolation Supports high and Low Level triggering (Pack of 10)

$13.99 on Amazon

#7 5Pcs 1 Channel DC 3V/3.3V JESSINIE 5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board

$9.95 on Amazon

#8 2pcs DC 12V 2 Channel HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V

$8.59 on Amazon

#9 DC 5V Relay Module 1 Channel Valefod DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10

$12.99 on Amazon

#10 DC 1 Channel Optocoupler Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5)

$11.88 on Amazon

#11 PC817 Arduino 2 4 8 Channel PC817 Arduino 2 4 8 Channel Channel Channel Optocoupler Photocoupler Optoisolator Module

$3.88 on Ebay

#12 PC817 Optocoupler Optocoupler ARDUINO PC817 Optocoupler Optocoupler Photocoupler Optoisolator Module 1-20 Channel Channel

$2.91 on Ebay

#13 1 Channel PC817 Optocoupler NOYITO 1-Channel PC817 Optocoupler Isolation Module Optoelectronic Isolator Signal Isolation and Anti-Interference 3-5V 12V 24V (Pack of 2) (3-5V)

$6.99 on Amazon

#14 Optocoupler Isolation DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module

$13.99 on Amazon

#15 2pcs PC817 2 Channel HiLetgo 2pcs PC817 2 Channel Optocoupler Isolation Board 817 Voltage Isolation Module Voltage Converter Module 3.6-30V Photoelectric Isolated Module(2/4/8 Channel Optional)

$6.99 on Amazon

#16 🆕 PC817 2 Channel Optocoupler PC817 2 Channel Optocoupler Photocoupler Phototransistor Module for Arduino

$3.31 on Ebay

#17 2pcs DC 12V Relay Module AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger

$8.99 on Amazon

#18 4pcs 8CH Optocoupler ACEIRMC 4pcs 8CH Optocoupler PC817 8 Channel Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module (8CH Optocoupler)

$15.69 on Amazon

#19 IR Infrared Slotted Optical Teyleten Robot IR Infrared Slotted Optical Optocoupler Module Speed Measuring Sensor 3.3V to 5V Photo Interrupter Sensor for Arduino 10pcs

$9.99 on Amazon

#20 30A 4 Channel Relay Module NOYITO 30A 4 Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 30A for PLC Automation Equipment Control, Industrial Control (4-Channel 12V)

$18.99 on Amazon