The motion sensor switch circuit can automatically turn on a water sprinkler but you can easily use it as a motion sensor light switch or motion activated alarm too. Before beginning the construction ...

The motion sensor can be placed anywhere to control up to two rooms of lights. It has a motion detection range of about 5 meters, or 16.5 feet, so whenever anyone walks near it, lights turn on.

Lights that turn on when you walk into a room and turn off when you leave are one of the most desirable smart home features. But you need to buy additional hardware like motion sensors to make ...

Here's a deluxe switch that knows when you’re in the room and automatically adjusts the light level based on ambient brightness. By Christopher Null May 1, 2019 3:00 am PDT Image: Orro ...

This motion sensor is tied to a stay-on switch for the kitchen. So, when I take out the trash, the kitchen lights do not turn off abruptly just because I have left the room for more than a minute.

And they are pretty easy to install these days: devices like the 2nd generation Leviton Decora Smart WiFi Motion Sensing Dimmer that I tested here are just drop-in replacements for your old light ...