3-in-1 8-CH 24V Relay Module w/ Optocoupler for Arduino

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1 2 4 8 Channel DC 24V Relay Module with Optocoupler High and Low Level Trigger Expansion Board For arduino 24 V Relays Board

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DC 5V 12V 24V 16 Channel Relay Module For arduino ARM PIC AVR DSP Electronic Relay optocoupler LM2576 Interface Power Relays

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5V 12V 24V 4 Channel Relay Module With Optocoupler isolation Support High and Low Level Trigger 4 Road Relays Board For Arduino

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DC 5V/12V 8 Channel Relay Module 8 Way Relays With Optocoupler For Arduino PIC AVR MCU DSP ARM 8-Channel Relay Expansion Board

OOTDTY 16 Channel 5V Relay Shield Module For Arduino UNO 2560 128 ARM PIC AVR STM32 Electronic Relay Belt Optocoupler Insulation

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3V 8 Channel Relay Module Interface Board Low Level Trigger Optocoupler for Arduino SCM PLC Smart Home Remote Control Switch

3V 8 Channel Relay Module Interface Board Low Level Trigger Optocoupler for Arduino SCM PLC Smart Home Remote Control Switch

12V 16-Channel 16CH 16 CH WAY Relay Shield Module With Optocoupler LM2576 Power Supply For Arduino Board

8-Channel 8-CH Relay Module DC 5V with Optocoupler isolation H/L high/low Level Triger for Arduino

5V 4 Channel Relay Module Interface Board Low Level Trigger Optocoupler for Arduino SCM PLC Smart Home Remote Control Switch

16 Channel Relay Module for arduino ARM PIC AVR DSP Electronic Relay Plate Belt optocoupler isolation 16 Way Relays Module

16-Channel 16CH 16 CH WAY 5V Relay Shield Module With Optocoupler LM2576 Power Supply For Arduino Board

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