There are many ways to control your Hue WiFi-connected lighting system – smart Hue Switches, apps for mobile devices or computers, Alexa voice commands, IFTTT – but those are limited in various ways. Perhaps there are some areas, like a dark hallway or stairs, where you would like a hands-free way of turning on the lights. Philips has introduced a battery-powered motion sensor, so you don’t need a nearby power outlet to use it. You will need a Hue Bridge to connect it to your system, and you’ll program it using the Hue app. Once connected, it turns on the programmed lights when it senses motion and turns them back off after a period of no motion. It comes with its first set of AAA alkaline batteries and a magnet or screws for mounting. The Philips Hue Motion Sensor is available at Best Buy for $39.99.