If ORP of pool Pool becomes too low, then turn on plug Salt system -

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If you have a Blueriiot smart pool sensor this can be used in conjuction with a smart outlet to turn on the salt system chlorinator en chlorine levels are too low. I use this another applet that turns on an outlet that has my pool pump plugged in to it.

This trigger fires when the ORP of your pool water has been evaluated as too low according to your swimming pool target values.

This action will turn on your D-Link smart plug.