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1/10PCS 3.3V 5v 12V 24V 1 2 4 8 Channel Relay Module With Optocoupler. Output X Way for Arduino 1CH 2CH 4CH 8CH

High/Low Level Trigger Relay Module,1/2/4/6/8 Channel,5V12V24V,Home Intelligent Control Module,With Optocoupler Isolation Output

3.3V 5V 3 Channel Relay Module 5mA With Optocoupler Isolation Compatible Signal

KY-019 5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM For Arduino Relay

1-50pcs KY-019 5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM For Arduino Relay

16 Channel Relay Shield Module DC 5V 12V 24V with Optocoupler LM2576 Microcontrollers Interface Power Relay For Arduino DIY Kit

5/3/1PCS 5V/12V Time Delay Relay Module NE555 Time Relay Shield Timing Relay Timer Control Switch Car Start Delay Switch Board

High and Low Level Trigger 1 Channel Relay Module interface Board Shield For PIC AVR DSP ARM MCU Arduino low leve 5V 12V 24V

5V 12V 24V Relay Output Mudule Support High Or Low Level Trigger Relay Board with Optocoupler Isolation Electronic Components

10PCS 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger for Arduino Raspberry pi ARM AVR

LED Digital Timer Relay Delay Switch Module DC5V/12V/24V Adjustable Time-Delayed Trigger Timing Switch Relays Board

1-5Pcs DC 5V 9V 12V 24V 1 Channel Relay Module With Optocoupler Shield Board High Low Level Trigger Power Supply Module Arduino

1/2/4/8 Channel High/Low Level Trigger Relay Module 5V12V24V Ome Intelligent Control Module with Optocoupler Isolation Output

1-10Pcs 1 2 4 8 Channel 5V DC Relay Module Solid State High Level SSR AVR DSP G3MB-202P Relay for arduino

5/3/1PCS 5V/12V Time Delay Relay Module NE555 Time Relay Shield Timing Relay Timer Control Switch Car Start Delay Switch Board

1PCS~5PCS KY-019 DC5V 1channel Relay Module for Arduino Raspberry Pi PIC + 3PCS 10CM 10Pin Dupont Line for Arduino Relay

1 Channel 5V/12V/24V Relay Module Optical Coupling Isolation High And Low Level Trigger Microcontroller Red Board

5V 2 Channel Relay Module with Optocoupler Isolation Compatible Arduino ESP32 Raspberry Pi PLC DIY Projects

ONE 1 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger

5pcs 5V 2 Channel 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with R3 MEGA 2560 1280 DSP ARM