Explore 4 terms in the devices & sensors category of our smart home glossary.
A presence sensor detects whether a person is in a room, including someone sitting perfectly still, usually with mmWave radar rather than the heat-and-movement detection of a traditional motion sensor. The payoff: lights that don't switch off while you're reading on the couch.
Learn more →A smart bulb is an LED light bulb with wireless control built in, so you can dim it, change its color or warmth, schedule it, or trigger it from automations, with no wiring changes and no special switch required.
Learn more →A smart plug is a controllable adapter that sits between a wall outlet and whatever you plug into it, letting you switch that device on or off remotely or on a schedule. It's the cheapest, lowest-commitment way to make a "dumb" appliance smart.
Learn more →A smart switch is a wall switch that replaces your existing one and adds wireless control, scheduling, and automation to whatever it's wired to, while still working as an ordinary switch for anyone who just wants to flip the lights.
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