Device to measure amperage supply change?

I would like to know if there is a device that is able to measure change of amperage in the wall and so i can automated on-off other devices based on the amperage being supplied by the wall outlets.

thank you very much :slight_smile:

You can use this and flash it with a custom firmware:

https://www.itead.cc/sonoff-pow.html

If you like the DIY scene, you can make this:

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Thank you very much :smiley:

I’d second the suggestion of using Sonoff POW.

If you are interested in different options regarding the firmware, I would suggest Snoff Tasmota

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is there any step by step tutorial on how to work on them ?

what i want to do is actually, set… if current > 10 amperes turn off this machine and that.

Sure there is!

Documentation itself is pretty well-polished.

Tasmota Sonoff POW wiki and Home Assistant - automation

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