I have 2 floor lamps in my living room. Lamp 1 is on a switched outlet. Lamp 2 is across the room. I would like to be able to switch on both lamps at the same time without having to rewire outlets (expensive) or stretch an extension cord (dangerous). So an inline device that would sense power on Lamp1 and switch on Lamp 2.
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But how would the inline device communicate between the place it must sense, and the place it must switch? You are back to wires on the floor. Perhaps low voltage wires, but still.– Harper - Reinstate MonicaCommented Nov 8, 2018 at 16:29
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Product recommendations are off-topic on this site. You can however have that end results using Insteon. Replace wall switch and buy a plug in module for lamp 2. The wall switch for lamp 1 can be linked as a controller for lamp 2’s plug in module. No hub required, but it does make programming/linking easier.– TysonCommented Nov 8, 2018 at 17:07
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@Tyson make that an answer. Not specific to Insteon, as most smart switches can do this as well...– mmathisCommented Nov 8, 2018 at 17:10
1 Answer
You must do your shopping for smart home devices. Specific product recommendations are off-topic on this Stack Exchange (although I did give a specific example in a comment).
What you’re looking for tho is a wall switch that acts as a controller for one lamp, and a plug in module for lamp 2. You don’t need to sense voltage at all, you just need a smart switch that will turn on another device as well as itself. In some cases you may or may not need a particular systems hub. I would also watch out for systems where internet connection is required for the setup to operate correctly.