1-Channel 5V Relay Module for Arduino

ALMOCN 6PCS 5V Relay Module 1 Channel LED Indicator Light Relay Module Board Shield for Arduino

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One 1 Channel 5V 12V Relay Module Board Shield for Arduino with Optocoupler Support High and Low Level Trigger - Price history & Review, AliExpress Seller - Sincere Company Store

In-Depth: Interface One Channel Relay Module with Arduino

One Channel Relay Module for Arduino - Share Project - PCBWay

Inland Single 5V Relay Module for Arduino - Micro Center

Cheap 2Pcs Blue One Channel Relay Module Small High/Low Level Trigger Relay Board Arduino Relay

Use Konnected to switch things on and off with a relay module. - Compact relay module with screw terminals for your switched devices - Normally Open

1 Channel 5V Relay Module with High/Low Level Trigger

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5PCS 1 Channel 5V Relay Module Shield for Arduino Uno Meage 2560 – diymore