Motion Sensor with Intelligent Motion Sensor and Ambient Light Sensor compatible with Philips Hue, PIR & ALS. When you enter the room, lights turn on automatically, night and day mode can be set and, with the integrated daylight sensor, your lights only turn on when necessary. It has a scanning angle of up to 100° and detects up to 5 m. Power - 2 x AAA batteries. Compatible with Amazon Alexa and Apple Homekit. Requires bridging Philips Hue. Dimensions - 55 x 55 x 20 mm.