Relay Series
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    2/4 Channel High-low Level Trigger Control Module DC 5V Solid State Relay Module
    $15.99
    4 Channel 5V Relay Module Extension Board Shield V1.3 240VAC/60VDC for Arduino
    $13.99
    DC 8V-36V Relay Board with Optocoupler LED Display Relay Controller Self-locking
    $22.99
    2/4 Channel High-low Level Trigger Control Module DC 5V Solid State Relay Module
    $14.99
    4 Channel Trigger Board Shield High Low Level Trigger for PLC Automation Control
    $19.99
    FRM01 DC12V Relay Module 1 Channel Infinite Loop Timing PLC Digital Display
    $12.99
    LED Delay Relay Module Adjustable 5V/12V/24V Relay Module for Motor Light Strip
    $8.99
    Relay Interface Board LED Indicator with Optocoupler 10A 5V 12V 24V Relay Output
    $8.99
    5V/12V/24V Delay Time Relay Module 32 Modes 20mA Multifunction Automatic Control
    $8.99
    6-Way Interlock Switch Relay Module High Low Level Trigger 12V 6 Channel Board
    $17.99