The Samsung SmartThings Motion Sensor is a white unit designed for home automation with smart home compatibility specifically for Samsung SmartThings. It is a single motion sensor that allows users to enhance their home surveillance system with advanced technology. With its reliable brand name and high-quality design, this sensor is a perfect addition for those looking to improve their smart home setup. USED , IN GOOD WORKING AND COSMATIC CONDITION USES CR2450 BATTERY ( INCLUDED ) NO RETURNS IT NEEDS SAMSUNG SMART-THINGS HUB TO CONNECT ..