The Minuteman RoboScrub 20 4G Sentinel Antenna 500-00147-01 is a high-quality scrubber designed for industrial cleaning applications. With its advanced technology and efficient design, this model (MR20) from Minuteman offers reliable performance for maintaining clean floors and surfaces. The 4G Sentinel Antenna ensures precise and effective scrubbing, making it a valuable tool for businesses looking to keep their facilities in top condition.