> For the complete documentation index, see [llms.txt](https://wiki.codeandcompile.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.codeandcompile.com/factory-automation/safety-controller/banner-sc10-series/4-rf-door-switch-safety-circuit.md).

# 4: RF door switch safety circuit

Safety door switches with a limit switch or magnetic action are easy to hack. But you cannot easily hack a safety switch that is uniquely coded with RFID.

Check out this episode to see this next-level safety switch in action. The RF safety switch is used to control the relay output of the SC10 controller

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Episode 4: RF door switch safety circuit
{% endembed %}