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DC 5V 12V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger

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

Relay module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino

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

5PCS/LOT Relay SRD-03 05 09 06 24 12VDC-SL-C 5PINS 3V 5V 9V 6V 24V 12V High-quality SRD-03VDC-SL-C SRD-05VDC-SL-C SRD-09VDC-SL-C

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

1 channel 5V relay module with optocoupler isolation relay MCU expansion board high level trigger

1 Channel 5V 12V Relay Module Board Shield for Arduino with Optocoupler Support High and Low Level Trigger

4CH Smart Wifi Switch Smart Relay Module DC 5V 12V 24V 48V Wireless Switch Timer Phone Remote Control For EWeLink Google Home

1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY

1-10pcs 5V 12V One 1 Channel Relay Module Board Shield with optocoupler Support High and Low Level Trigger