This is the robot that automatically cleans barbecue grill grates. The device has three electric motors and a built-in CPU that rotate three cylindrical brushes to propel the robot across the grill grates and remove burnt bits of food and grease in just a few passes. The brushes’ brass bristles won’t scratch stainless steel or porcelain surfaces and they are removable and dishwasher safe. The device can be set to clean for 10, 20, or 30 minutes and its rechargeable battery provides up to four hours of power after a four-hour charge via the included AC adapter. For use on warm grills below 250° F, the robot will sound an alarm if the cleaning surface is too hot. 8 2/3" W x 8 1/3" L x 3 1/2" H.