> For the complete documentation index, see [llms.txt](https://brlabelectronics.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://brlabelectronics.gitbook.io/documentation/particle.io-devices/boron-argon-relay-shield.md).

# Boron-Argon Relay Shield

## Overview

The Particle Boron-Argon Relay Shield allows the user to control four individual relays for controlling various devices. The shield also breaks out the rest of the I/O for the user to interface with other devices such as sensors, display, motors, actuator, and etc. 

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[Particle Boron-Argon Relay Shield](https://brlabelectronics.gitbook.io/hardware-1/)
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