optocoupler relay 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 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

#12 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

#13 4pcs Relay Module 24V AEDIKO 4pcs Relay Module 24V Relay Board 2 Channel with Optocoupler Support High or Low Level Trigger

$8.99 on Amazon

#14 🔥 Multifunction Relay HILITAND Multifunction Relay, 8-36V 8-Channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED

$35.28 on Amazon

#15 🔥 24 Pcs 5v Relay Module Kigeli 24 Pcs 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 Inches

$23.99 on Amazon

#16 🔥 PC817 8 Channel Optocoupler DAOKAI PC817 8 Channel Optocoupler Isolation Module 3.6-30V Voltage Converter Driver Photoelectric Isolated Board for Control Relay with 24AWG Wire

$7.59 on Amazon

#17 12V 16 Channel Relay Diitao 12V 16 Channel Relay Module Board Optocoupler LED LM2576 Power Low Level Trigger 16 CH Expansion Board (12V 16-Channel)

$12.99 on Amazon

#18 30A 4 Channel Relay Module DIANN 30A 4 Channel Relay Module 12V Relay Module Expansion Board High Low Level Trigger with with Optocoupler Isolation for PLC Automation Equipment Control Industrial Control

$14.99 on Amazon

#19 1PCS DC 24V 1 channel 1PCS DC 24V 1 channel Optocoupler Relay Module Support high and low trigger

$0.99 on Ebay

#20 🔥 2pcs 5V 30A 2 Channel DIANN 2pcs 5V 30A 2-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load for PLC Automation Equipment Control Industrial Control

$13.99 on Amazon