4 Channel Relay Shield

Relay Shield (i.e. 5V Quad Relay Module) is a small current signal control power equipment commonly used electronic module. Enabling high-power single-chip, control devices are widely used in SCM system to make smart home project, and can be directly plugged into the compatible various types of motherboards, eliminating the patch cable troubles.

Features:

• Standard for shield interfaces and shape
• Can continue to stack other expansion boards
• 3 M3 screw positioning holes for easy installation
• High Drive (5V or 3.3V) normally open contact closure
• Onboard relay indicator (red)