Control your lights automatically by adding a Philips Hue motion sensor to your Philips Hue system. You can place the sensor anywhere in your home as it is battery powered and completelywireless. Simply walk by to trigger your lights.<br />Philips Hue Motion sensor. Type: Motion sensor, Product colour: White, Housing material: Plastic. Power source: Battery, Battery type: AAA. Weight: 65 g, Length: 30 mm, Width: 55 mm. Quantity per pack: 1 pc(s), Package width: 72 mm, Package height: 174 mm. Hue dimmer switch battery type: AAA