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    Relays (131)

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    1-Channel 5V 30A High-Power Relay Module for Arduino

    1-Channel 5V 30A High-Power Relay Module for Arduino

    5.46   4.22

    OPEN-SMART Smart Socket Single Relay Module for ESP8266 ESP-01 ESP-01S ESP8285 ESP-1

    OPEN-SMART Smart Socket Single Relay Module for ESP8266 ESP-01 ESP-01S ESP8...

    2.44

    Geekworm Plastic Bracket Base for 1 Channel 30A Relay Module

    Geekworm Plastic Bracket Base for 1 Channel 30A Relay Module

    2.54

    2-Channel 12V High Level Trigger Relay Modules for Arduino (5 PCS)

    2-Channel 12V High Level Trigger Relay Modules for Arduino (5 PCS)

    12.63   11.36

    Keyes 4 Channel Relay Module for Arduino UNO R3

    Keyes 4 Channel Relay Module for Arduino UNO R3

    7.15

    4-Channel 5V 12V Relay Module w/ Optocoupler - Blue (Expanded Version)

    4-Channel 5V 12V Relay Module w/ Optocoupler - Blue (Expanded Version)

    3.53   3.25

    5V 8-Channel Relay Module with Optocoupler Isolation

    5V 8-Channel Relay Module with Optocoupler Isolation

    5.55   4.89

    DIY 8 Channel 12V Relay Module with Optocoupler PLC Relay Controller

    DIY 8 Channel 12V Relay Module with Optocoupler PLC Relay Controller

    5.86   5.42

    4-Channel 5V Opto-isolator Relay Module High Level Trigger - Blue

    4-Channel 5V Opto-isolator Relay Module High Level Trigger - Blue

    4.56   4.27

    5V Relay Module for Arduino - Blue

    5V Relay Module for Arduino - Blue

    1.81

    PLC High Level DC 5V One Channel Relay Module for PIC ARM

    PLC High Level DC 5V One Channel Relay Module for PIC ARM

    1.72

    16-Channel 5V Relay Optocoupler Protection Module Board

    16-Channel 5V Relay Optocoupler Protection Module Board

    13.04   12.13

    8-Channel 5V Relay Module - Black + Blue

    8-Channel 5V Relay Module - Black + Blue

    6.5   6.04

    Solid State High Level 4 Channel 5V DC Relay Module - Black + Blue

    Solid State High Level 4 Channel 5V DC Relay Module - Black + Blue

    8.6   6.73

    DC 12V Delay Relay Shield NE555 Timer Switch Adjustable Module 0~10S

    DC 12V Delay Relay Shield NE555 Timer Switch Adjustable Module 0~10S

    3.12   2.53

    Wide Voltage 5V~30V Trigger Delay Relay Module Timer Module - Blue

    Wide Voltage 5V~30V Trigger Delay Relay Module Timer Module - Blue

    3.6   2.82

    12V 8-CH Relay Module w/ Optocoupler for Arduino / Raspberry Pi - Blue

    12V 8-CH Relay Module w/ Optocoupler for Arduino / Raspberry Pi - Blue

    6.98   5.81

    12V 5mA 2-Channel Relay Module With Optocoupler Isolation - Red + Blue

    12V 5mA 2-Channel Relay Module With Optocoupler Isolation - Red + Blue

    2.94

    Keyestudio Four Channel 5V Relay Module Relay Shield for Arduino

    Keyestudio Four Channel 5V Relay Module Relay Shield for Arduino

    4.72   4.29

    Produino New Light Photoresisto Relay Module for Arduino (Works with Official Arduino Boards)

    Produino New Light Photoresisto Relay Module for Arduino (Works with Offici...

    3.24   2.94

    4 Channel Relay Module Programmable w/ RS485 STM8S103F3

    4 Channel Relay Module Programmable w/ RS485 STM8S103F3

    9.64   8.69

    5V Eight 8-CH Relay Module w/ Optocoupler for Arduino PIC AVR DSP ARM

    5V Eight 8-CH Relay Module w/ Optocoupler for Arduino PIC AVR DSP ARM

    8.12   6.28

    New 2-Channel 5V High Level Dual Power Relay Module - Red + Blue

    New 2-Channel 5V High Level Dual Power Relay Module - Red + Blue

    5.88   4.89

    2-Channel 12V Low Level Dual Power Relay Module - Red + Blue

    2-Channel 12V Low Level Dual Power Relay Module - Red + Blue

    5.88   4.07

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