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2-channel 2 way 5V Relay Shield Module with Opticalcoupler Protection

2-channel 2 way 5V Relay Shield Module with Opticalcoupler Protection - Main image
2-channel 2 way 5V Relay Shield Module with Opticalcoupler Protection - View 22-channel 2 way 5V Relay Shield Module with Opticalcoupler Protection - View 32-channel 2 way 5V Relay Shield Module with Opticalcoupler Protection - View 4
$0.96 $1.32 In stock

Category: Relays

This 2-channel 5V relay shield module features optical coupler protection for reliable switching. It provides two independent relay channels, each equipped with normally open, common, and normally closed screw terminals for flexible wiring.

  • Two relay channels for controlling multiple circuits independently
  • Operates at 5V, compatible with many microcontroller projects
  • Optical coupler protection to isolate control and load circuits
  • Each channel includes normally open, common, and normally closed terminals
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Customer Reviews (5.0 / 5 · 5 reviews)

Ryan V. ★★★★★

The optical coupler isolation was exactly what I needed for my noisy industrial sensor setup — no more false triggers. Both channels click cleanly and the 5V operation works perfectly with my existing power supply.

Elizabeth ★★★★★

Wired this into a 5V Arduino project and the two independent channels with their own NO/COM/NC contacts made hooking up two separate loads dead simple. The optocoupler protection is a nice peace-of-mind touch, and it’s been switching cleanly for a week straight without a hiccup.

Emma M. ★★★★★

The optical coupler isolation gives me peace of mind when switching a 12V pump, and the screw terminals make wiring a breeze. Worked perfectly right out of the box for my Arduino project.

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