Walmart has the Mainstays 13.2 gal /50 L Motion Sensor Kitchen Garbage Can for only $26! (Reg. $47) The Mainstays Stainless Steel Motion Sensor Trash Can is perfect for large families or busy environments. For improved cleanliness and hygiene, this trash can operates with infrared motion sensor technology to allow you to simply wave your hand above the sensor at the front of the lid to open it automatically. The lid will remain open as long as there is an object in front of the sensor and close gently five seconds after the object is removed.